When______ a new word, you’d better_______ a dictionary.
| A．come across, refer to | B．coming across, consult |
| C．coming across, look up | D．come across, consult |
Not until they left school how much their teachers loved them and helped them.
| A．they realized | B．did they realized |
| C．the would realized | D．had they realized |
It’s nice to see you again. What since we last met?
| A．have you done | B．had you done |
| C．have you been doing | D．did you do |
— Shall we take the 10:20 train?
—No. If we took that train, we too late.
| A．arrive | B．arrived | C．will arrive | D．would arrive |
— I had thought he would be nervous in this speech competition, but he turned out to be calm.
— He quite enough preparation for it.
| A．should do | B．must do | C．should have done | D．must have done |
Don’t give up regardless of difficulty and failure, you’ll never achieve your goals.
| A．and | B．but | C．or | D．so |