Our classroom is tidy because it ____ every day.
| A．cleans | B．cleaned |
| C．is cleaned | D．was cleaned |
Can you see _____________?
| A．what he’s reading | B．what is he reading |
| C．what does he read | D．he reads what |
—Have you ever _______ to bring your homework to school?
—Yes. I _______ it at home once last term.
| A．left; forgot | B．forgotten; left | C．forgotten, forgot | D．left; left |
By the time she went outside, the bus ____ already ______ .
| A．had, gone | B．had, went | C．has, gone | D．has, went |
---- I’m sorry, I ________ your English book in my house.
---- It doesn’t matter. Please don’t forget _________ it here tomorrow.
| A．forgot; to bring | B．left; to bring | C．forgot; to take | D．left; to take |
----Do you know where coffee was from first?
----It was said that coffee ______in Africa a long, long time ago.
| A．discovered | B．invented | C．was invented | D．was discovered |