Chinese exports have been hit hard by falling world demand, with millions of workers _______ to their villages after the factories that employed them closed down.
| A．returned | B．returning | C．have returned | D．return |
____ finishing his homework, he went to play basketball.
| A．In | B．Upon | C．At | D．With |
He tried to invite some famous pop stars to sing in the concert ______, but failed.
| A．with free | B．for freely | C．with freedom | D．for free |
— Did you notice that guy almost hit a kid on a bicycle?
—No. I ______ the other way.
| A．was looking | B．looked | C．have looked | D．am looking |
“Stop thief! Stop thief!” But the thief was ________ by the crowd and we lost sight of it.
| A．drowned | B．swallowed | C．caught | D．stopped |
The waters off the Diaoyu islands, first _____ in Ming Dynasty, are our traditional fishing area.
| A．discovered | B．discovering | C．being discovered | D．having discovered |