I really don’t know _____ I put my wallet after I paid the bill.
| A．where was it | B．it was where that |
| C．where it was that | D．where was it that. |
Your letter will get ___ attention; they know you're expecting the answer.
| A．careful | B．common | C．instant | D．general |
There are some seemingly insignificant matters that, when _______ in time, can become bigger ones later on.
| A．not dealt with | B．not being dealt with |
| C．not to be dealt with | D．not having been dealt with |
—You seem to be familiar with London.
—I ______ there for three years. It’s great to be back.
| A．lived | B．had lived | C．have lived | D．live |
Children ______ to difficult situations are better at handling those _____ tasks.
| A．exposing; challenging | B．exposed; challenged |
| C．exposed; challenging | D．exposing; challenged |
The plan _____ just because people were unwilling to cooperate.
| A．broke up | B．broke down | C．broke away | D．broke off |