—When __________ again?
—When she __________, I'll let you know.
| A．she comes ； come |
| B．will she come ； will come |
| C．she comes ； will come |
| D．will she come ； comes |
—Why don't you go to medical college and be a doctor?
—Oh.It calls for a great deal of________with long training, which I am afraid I don't have.
| A．strength | B．energy | C．wisdom | D．patience |
I can't understand why he ________ so selfish. He isn't usually like that.
| A．was | B．had been | C．is | D．is being |
Jack decided to risk looking for a place to stay where he arrived, rather than booking ______.
| A．in advance | B．in return | C．in fact | D．in addition |
______ good knowledge of several languages is essential to _____ study of comparative literature because without it one can read books only in translation.
| A．A; the | B．A; / | C．The; the | D．/; the |
I should not have laughed if Iyou were serious.
| A．thought | B．would think | C．had thought | D．have thought |