I called him many times, but I didn’t get through, maybe his mum _ on the phone all the time．
| A．talked | B．was talking | C．has talked | D．had talked |
相关试题
Bring the plants into a warm room _____ they will soon open.
| A．or | B．and | C．but | D．for |
When I got home, I _____ I had left my wallet in the taxi
| A．was realizing | B．realized | C．have realized | D．would realize |
The two men are so alike that strangers find _____ difficult to tell one from the other.
| A．it | B．them | C．her | D．that |
As is known to all, _____USA is _____ biggest developed country in the world.
| A．the; 不填 | B．不填; the | C．the; the | D．不填; 不填 |
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