All of us went to the park ______ Bob. He had to look after his sister.
About __________ of my classmates in my class were born in 2000. A. two third B. four fifth C. three fourths
All of us find __________ difficult to do the exercise. A. this B. it C. that
I don’t think he can read the new words so well, __________? A. can he B. can’t he C. do you
—Must I come before 7:00 tomorrow? —No, you ________. A. needn’t B. mustn’t C. couldn’t
Our teacher often uses the Internet ________ he often sends emails. A. or B. and C. but