.-----I_____ asleep while I was reading.
-------It doesn’t matter.
| A．should have fallen | B．must have fallen | C．could fall | D．must fall |
Mrs. Brown was much disappointed to see the washing machine she had _____ went wrong again.
| A．it repaired | B．to be repaired |
| C．to repair | D．repaired |
Last term our maths teacher set so difficult an examination problem _____ none of us worked out.
| A．that | B．as | C．so that | D．which |
_____ all the inventions have in common is ______ they have succeeded.
| A．What； what | B．That； what |
| C．What； that | D．That； that |
-What shall we have for dinner tonight?
-Oh，I don’t care. ____. It’s your job to come up with the menu，so get on with it.
| A．Anything will do |
| B．I won’t have lessons tomorrow |
| C．I needn’t to talk about it with someone |
| D．What a nice meal |
Mr. Green left _________ suddenly _________ he came.
| A．so； that | B．so； as | C．as； that | D．as； as |