What do you think is the matter with your car? —Well, it _____ start at all. I mean I turned the key and nothing happened.

I can guess you were in a hurryYou _____ your sweater inside out

You must keep on working in the evening _____ you are sure you can finish the task in time.[ ]

Some Chinese words, ____________ Tuhao and Dama, were added to some English dictionaries in 2014.

For a long time, he hesitated whether he should tell us ____ what had happened