一How can we reduce C02 in our home?
一It’s easy．________ off your TV or computers when you’re not using
them and you’ll greatly reduce it．
| A．Turn | B．To turn | C．Turning | D．Turned |
Anne___tomorrow.
| A．can sing | B．can to sing | C．is going sing | D．going to sing |
____ you tell me what has happened?
| A．May | B．Must | C．Can | D．Could |
Not only ____us light.
| A． does the sun give | B．the sun gives |
| C．gives the sun | D．the sun does give |
He___to meet us at the station, but didn't see us.
| A． did go | B．did went | C． goes | D．had |
My teacher knows more than ___.
| A． my uncle knows | B．my uncle does |
| C． they know | D．they don't know |