My command of English is not ____ yours.
| A．as half as | B．so half good as |
| C．good as half as | D．half so good as |
The headmaster’s words are quite _____.
| A．encouraged | B．encouragement | C．encouraging | D．encourage |
--Do you often hear John ___ in his room? --Yes. Listen! Now we can hear him ___ in his room.
| A．sing; to sing | B．singing; singing | C．sing; singing | D．to sing; singing |
The scientist suggested ____ the experiment in a different way.
| A．do | B．to do | C．doing | D．done |
It’s bad for your eyes ____ computer games for a long time.
| A．plays | B．to play | C．play | D．played |
A policeman saw two thieves ____ a girl’s mobile phone on a bus and he caught them at once.
| A．to steal | B．stealing | C．stole | D．stolen |