We _______him on his birthday and held a party to _______it.
| A．congratulated; congratulate | B．celebrated; celebrate |
| C．celebrated; congratulate | D．congratulated; celebrate |
We were swimming in the lake _______ suddenly it began to rain heavily.
| A． when | B． while | C． until | D．before |
Don’t try to cheat in the exam; you will never _______ it.
| A． get away from | B． get rid of | C． get away with | D．get out of |
I had been looking for the book for two days _______ I found it at last.
| A． until | B． when | C． while | D．before |
She never laughed, _______ lose her temper.
| A．or she ever did | B． nor did she ever | C． or did she ever | D．nor she ever did |
Most companies’ marketing effort is focused on getting customers, with little attention _______ to keeping them.
| A．paying | B．to pay | C． paid | D．having paid |