The girl looked at me with a________expression. Maybe the problem was quite________.
| A．puzzled；puzzling | B．puzzling；puzzled |
| C．puzzled；puzzled | D．puzzling；puzzling |
It's no use __________ without taking action.
| A．complain |
| B．complaining |
| C．being complained |
| D．to be complained |
Even the best writers sometimes find themselves __________ for words.
| A．lose |
| B．lost |
| C．to lose |
| D．having lost |
I am afraid he's more of a talker than a doer, which is __________ he never finishes anything.
| A．that |
| B．when |
| C．where |
| D．why |
Claire had her luggage __________ an hour before her plane left.
| A．check |
| B．checking |
| C．to check |
| D．checked |
His father got very __________ when he made a mistake again.
| A．annoying |
| B．being annoyed |
| C．be annoying |
| D．annoyed |