The mother didn’t know _____to blame for the broken glass as it happened while she was out.
A．who B．which C． they D．that
Behind the coach _____our team wearing blue suits．
A．have B．walk C．is followed D．appears
The poor little boy who _____caught stealing a cake over there is an orphan．
A．has B．had C．got D．is
-----Did Mary come to the party?
---I don’t know．She _____while I was out．
A．may have come B．must have come
C．might come D．could come
The old man leads ______happy life now, but he will never forget ______hard time when he was poor.
A.the, a B. /; the C. the; / D. a, the
---I regret _____you John has been fired．
---I can hardly believe my ears．He’s such a fine worker．
A．telling B．having told C．to tell D．to have told
