19: We all think that the ( ) century will encounter many challenges. A: twenty-first B: twentieth-first C: twenty-one D: twentieth-one ...

14: We saw ( )kangaroo in the zoo.( )kangaroo was from Australi A: a, The B: the, An C: an, The D: the, A ...

9: —Who taught ( ) French? —Nobody. She learned all by ( ). A: herself, her B: she, herself C: her, herself D: her, she ...

4: There are( )on my computer. A: three paper B: three pieces of papers C: three pieces of paper D: three papers ...

30. The company’s move to new offices is _______.- A. in effect B. in turn C. in nature D. in process ...

13. It’s already 5 o’clock. Don’t you think it’s about time _______? - A. we are going home B. we went home C. we go home D. we can go home ...

6. Only after I had reached the supermarket _______ that I had forgotten to take my purse with me. - A. I realized B. I had realized C. I have realized D. did I realize ...

13. —____I put my coat here? —Sorry, you ______. A. May; mustn't B. Do; don't C. Can; needn't D. May; can't ...

24. — What time is the next flight to Washington? — _______ A. It’s a smaller one. B. It’s too late . C. It’s 1.45 pm. D. It sounds good. ...

1. Down the entrance hall of the school walk four eighth-grade students. Each one is carrying a small basket with a single egg inside. Soon more students join them-each one of them is also carrying a basket with an egg. The eggs in a...