Only after Mary read her composition the second time ____ the spelling mistake.A．did she noticeB．she noticedC．does she noticeD．she has noticed

I have been living in the United States for 20 years, but seldom ________ so lonely as now.A．have I feltB．I had feltC．I have feltD．had I felt

— I’m sorry to tell you that you made a mistake in your test.— How can that be? I did it _______ in class. A．as toldB．as am toldC．as tellingD．as I told

____ , his idea was accepted by all the people at the meeting.A．It might sound strangeB．As it might sound strangeC．As strange it might soundD．Strange as it might sound

— Did you know any Chinese before you arrived in Beijing?— Never ________ it, actually.A．had I learned B．have I learned C．I have learnedD．I had learned

There is no doubt ______ you'll be warmly welcomed by people there.A．ifB．whetherC．thatD．about

________ where we can stay for a week.A．Next is another hotel to itB．Next to it another hotel isC．Next to it is another hotelD．It is next to another hotel is

When _____ help, one often says “Thank you.” or “it’s kind of you”A．offeringB．to offerC．to be offeredD．offered

Workers who cannot speak good English may be at disadvantage ____ with foreign customers. A．when interactingB．when interactedC．when to interactD．when being interacted

Only when he apologizes for his rudeness ____to him again.A．I will speak.B．will I speak.C．do I speak.D．I speak.

Only when I read this story for a second time _________to appreciate its beauty.A．did I beginB．that I beginC．I beganD．had I begin

Mr King, _________ company my sister works, donated a large amount of money this time.A．whoseB．in whichC．in whose D．Which

—As an old saying goes: “Opportunities favor the prepared mind.”—Perfectly! Now ______.A．the chance comesB．does the chance comeC．comes the chanceD．the chance did come

Among the crises that face humans ________ the lack of natural resources.A．isB．areC．is thereD．are there

I wonder why you didn’t do as ________ and it’s the third time you have done this. A．tellingB．be toldC．told toD．tell

On the north of the bank _____ the Opera House, _____ was built two hundred years ago.A．is lying; whereB．lies; whatC．lies; whichD．lying; that

Once a difficult and even dangerous place , Vietnam is now a friendly detestation that welcomes visitors from all over the world .A．considered; visiting B．considered; to visitC．considering; visiting D．considering; to visit

_______ and I’ll get the work finished.A．Have one more hourB．One more hourC．Given one more hourD．If I have one more hour

The drive wanted to park his car near the roadside but was asked by the police ________ . A．not to doB．not toC．not doD．do not

Not once ________ to Michael that he could one day become a top student in his class.A．occurred itB．it did occurC．it occurredD．did it occur

_____ more energy to my studies instead of to online games, I would be sitting in a comfortable office now.A．Were I devotedB．Had I devotedC．Would I devoteD．Should I devote

On the one side of the road grass should be planted, and ______.A．on the other are flowersB．on another flowersC．on the other flowersD．on another are flowers

I’ve tried very hard to improve my English. But by no means _____ with my progress.A．the teacher is not satisfiedB．is the teacher not satisfiedC．the teacher is satisfiedD．is the teacher satisfied

________ anything, give me a call and I'll be glad to help you.A．Had you requiredB．Should you requireC．Would you requireD．Could you require

The girl is an excellent student but not once in these years________ caught being late.A．has she gotB．she has beenC．was sheD．she got