I'd like to take________of this opportunity to thank you for your help.
| A．advantage |
| B．case |
| C．use |
| D．care |
--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 |
----Lily, keep the window ____. The sandstorm hasn’t stopped yet. ----OK, I’ll do that.
| A．close | B．closed | C．open | D．opened |