6. That can't be happenning to me.(选择最恰当的译文) A. 这不可能落到我头上啊 B. 这不会落到我头上。 ...
25. ___ man can now create radioactive elements, there is nothing he can do to reduce their radioactivity. A. As B. Whether C. While D. Now that ...
23. I can’t find the recorder in the room. It ____ by somebody. A. must have taken B. may have taken C. may have been taken D. should have been taken ...
22. It is widely ______that smoking can cause cancer. A. believed B. think C. say D. hoped ...
18. I can hardly imagine Peter ______ across the Atlantic Ocean in five days. A. to have sailed B. to sail C. Sailing D. sail ...
6. She can stay in her workroom for 10 hours without eating or sleeping, all her attention ___ her painting. A. focusing on B. focused on C. focusing in D. focused in ...
8. What he has done can be praised as a real_____. A. adventure B. venture C. risk D. torture ...
23. The ___ runner can run 2miles in fifteen minutes. A. common B. usual C. average D. general ...
11. Sorry,I can't answer your question.I know( )about the subject. A. a little B. some C. little D. few ...
10. When you can't follow your teacher,what will you say?( ) A. Can you say for a second time? B. Pardon? C. I don't understand anything. D. What you said was nonsense. ...