单选题：______ every year, many people do not hold a high opinion of..

短文改错。My hometown is a pretty city, so people there are kind and polite. With coming of spring, grass and trees turn green, and flowers grew in many colors. In summer9 the sea under the blue skies is even more attractive. After autumn arrives, the city loo

Tom looked upon the test as an obstacle _____ his classmates regarded it as a challenge. [ ]A. while B. because C. unless D. if

we are not attacked by nuclear weapons, we promise that uncler no circumstances use the bombfirst but we rescrve the right to use it for counter-attack when necessary. [ ]A. As long as; we shall B. If; shall weC. So long as; shall we D. Even if; we shall

Fran is an honest girl; I say it, ________I don't like her.[ ]A. even though B. as if C. as long as D. as though

— Would you like to come to the dinner party here on Saturday? — Thank you. I'd love to, _____I'll be out of town at the weekend. [ ]A. because B. and C. so D. but