The old couple, ____had been admitted to university, were living a hard life．
| A．both their children | B．both of whom children |
| C．both of whose children | D．whose their children |
That passenger was very impolite to the conductor, ______, of course, made things even worse.
| A．who | B．which | C．what | D．that |
His experiment done in ______ summer of 1970 was ______ failure.
| A．/; a | B．/; / | C．the; a | D．the; / |
Once natural resources _____ , the consequence will be unimaginable.
| A．use up | B．run out | C．are given out | D．run out of |
-- Is there any room in the ship?-- Yes. We can probably _____ a few more people into it.
| A．squeeze | B．press | C．hold | D．push |
He dressed up and went to the party as if_____.
| A．was invited | B．had been invited | C．to be invited | D．invited |