Every time I see her at her home, she ____ hard in her room.
| A．worked | B．is working | C．will work | D．has worked |
30.Little _________ that we were watching his every move, so he seemed to be going his own way in this business.
| A．he realized | B．he didn’t realize | C．did he realize | D．didn’t he realize |
29. The nutrients in ____ falls into the ocean will quickly become available to other living creatures.
| A．whichever | B．that | C．whatever | D．Wherever |
28. I don’t think you’ve quite__the seriousness of the situation. You seem to know nothing about it.
| A．recognized | B．mastered | C．grasped | D．Seized |
20．The river, ________ banks are covered with trees, is beautiful and it attracts many water birds.
| A．whose | B．what | C．of which | D．which of |
19．From this year’s poor results, one can see ______ many changes have been made in the football team and that, sadly, it is no longer ______ it once was.
| A．that; what | B．what; that | C．what; when | D．that; where |