That’s really a problem; no wonder all the students looked .
| A．puzzled; puzzling | B．puzzled; puzzled |
| C．puzzling; puzzling | D．puzzling; puzzled |
The lazy waiter ______ to his boss that he had ______ the table.
| A．lay; laid | B．lied; lay | C．lied; laid | D．laid; laid |
_____ made the school proud was _____ more than 90% of the students had been admitted to the key university.
| A．What; because | B．What; that | C．That; what | D．That; because |
When we were young, every evening my brother and I _____ stay at home waiting for my mother?
| A．might | B．would | C．should | D．could |
— Are you satisfied with what he did?— No. It couldn’t have been .
| A．worse | B．better | C．so bad | D．the worst |