| A．How | B．What | C．What’s |
| A．a | B．an | C．the |
| A．has broken into, has been stolen |
| B．had broken into, had been stolen |
| C．has been broken into, stolen |
| D．had been broken into, stolen |
| A．has lost; don’t find | B．is missing; don’t find |
| C．has lost; haven’t found | D．is missing; haven’t found |
| A．have made | B．have become | C．have been | D．have had |
| A．has left; comes | B．left; had come |
| C．had left; came | D．had left; would come |
| A．does the watch cost | B．costs the watch |
| C．the watch will cost | D．the watch costs |
| A．never think; are going | B．never thought; were going |
| C．didn’t think; are going | D．hadn’t thought; were going |
| A．have been | B．had been | C．was | D．will |
| A．had met | B．have met | C．met | D．meet |
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