__________ the task, they had to stay in the lab for another two hours.
Would you like towith us to the film tonight?
--I'm sorry I made a mistake! --No body is perfect.
We had an anxious couple of weeks, ____ for the results of the experiment.
____ shocks the audience in the film Back to 1942 is the great suffering the famine(饥荒)brought to Henan people.
He’ll never forget the days ____ he stayed with his grandmother in the village.