单选题：He hasn't slept at all for three days. _____he is tired ou..

Did you find impossible for him to tell the truth?[ ]A. this B. itC. thatD. what

Mary is the only one of the teachers who ________ a little Chinese because she is one of my friends who ________ been to China.A．know；haveB．knows；hasC．knows；haveD．know；has

(2013·咸阳一模)When we entered, we found lying on the ground ________ along with her parents.A．was a girl B．were a girlC．a girl was D．a girl were

Teaching in No.1 Middle School, _____. [ ]A. teachers work hard day and night and look older for their ages B. students say that they are lucky to receive good education hereC. God is deeply moved by the teachers' devotion D. too much pressure is giv

As a writer, I like ________ when people send me pictures of their lovely children reading my books.[ ]A. thisB. thatC. oneD. it