At a beach or a swimming pool a lifeguard is a person who is responsible for __________ other swimmers and protecting them from accidents.
| A．turning to | B．watching over | C．watching out | D．digging out |
The man went into the room, _____ rather strange.
| A．to look | B．looking | C．looked | D．and looking |
But she had to ___ the company and ____a man in order to get a job.
| A．lie to; pretended to be | B．lie; pretended to be |
| C．lie to; pretended being | D．lie; pretended as |
I _____ her voice at once on the phone, though we hadn’t seen each other for ten years.
| A．heard | B．knew | C．realized | D．recognized |
We have been _____ by all our friends since we settled in the new house.
| A．called on | B．called at | C．called into | D．called for |
During the next ten years we both worked day and night to
_____ the money we had borrowed.
| A．pay off | B．pay for | C．pay to | D．pay back |