--- Is there any possible way to help them get rid of such a bad habit?
--- To tell the truth, it’s very hard. But we teachers _______on this problem.
| A．are working | B．had worked | C．worked | D．had been working |
Many died or returned home, but most remained in California to _______ for themselves in the new town.
| A．making a life | B．make a live |
| C．make alive | D．make a life |
--- Don’t leave water while you brush your teeth, honey.
--- Ok, Mum.
| A．run | B．running | C．being run | D．to run |
．--- Where did he leave his car key?
--- It was in the lab he made the experiment.
| A．where | B．that | C．what | D．there |
--- Why don’t we take a little break?
--- Didn’t we just have ?
| A．this | B．that | C．it | D．one |
the big snake, the little girl stood under the tree out of her life.
| A．Seeing; frightened | B．Seeing; frightening |
| C．Seen; frightened | D．To see; frightening |