The river, ____ are covered with trees, is very long.
| A．which banks | B．of which banks |
| C．whose the banks | D．the banks of which |
________ is no doubt _______ Mo Yan, this year’s Nobel Prize winner in Literature, ever did so much on his way to success.
| A．It; whether | B．There; if |
| C．There; whether | D．There; that |
The fields where crops used to be grown ________ for building now.
| A．have used | B．have been used |
| C．are being used | D．are used |
I would appreciate ______________ if you could come to my birthday party.
| A．you | B．this | C．that | D．it |
I failed in the job interview and only then _____ the importance of learning English well.
| A．I realized | B．I had realized | C．did I realize | D．had I realized |
——It is a long time _____I saw you last．
——Yes．And it will be a long time _____ we see each other again．
| A．when; before | B．after; when | C．since; before | D．since; until |