My teacher _____ me the key to the classroom but I’m afraid I _____ it.
| A．had given, lost | B．has given, lost | C．gave, have lost | D．has given, have lost |
9. Please ______ your sister to bring the ticket for the concert.
| A．remind | B．remember | C．warn | D．Let |
8. Be careful ! The slightest spark could ______ the fireworks.
| A．set about | B．set off | C．set out | D．set up |
7. The police are offering a $ 60,000 _____ for information about the killer.
| A．price | B．prize | C．award | D．Reward |
6. People generally think that smoking is a bad ______ .
| A．custom | B．habit | C．behavior | D．Action |
5.We invited her to dinner but she didn’t even bother to _______ .
| A．turn in | B．turn up | C．turn on | D．turn down |