Our classroom is tidy because it ____ every day.
| A．cleans | B．cleaned |
| C．is cleaned | D．was cleaned |
Miss Lin ____ a lot of work for the poor area for about 10 years.
| A．does | B．did |
| C．has done | D．will do |
My friend John called and ____me to his party just now.
| A．will invite | B．invited |
| C．invites | D．has invited |
—I didn’t see you when I went to your office yesterday afternoon. Where were you?
—I ____ a meeting in the meeting room.
| A．have | B．will have |
| C．am having | D．was having |
She raised her voice to make everybody in the room ____ her clearly.
| A．heard | B．to hear |
| C．hear | D．hearing |