This year is the 49th Earth Day and I think we should people not to too many trees．（ ）
| A． |
call on； cut down |
| B． |
call at； cut up |
| C． |
call in； cut off |
（）—Yesterday I received a letter from John.
—You did? I hear he _______ for America next year.
| A．leave | B．leaves |
| C．left | D．is leaving |
—I called you several times this afternoon. Why didn’t you answer the phone?
--I’m sorry. I ________ an important meeting then.
| A．is having | B．was having |
| C．will have | D．have had |
Look! The police ______ the food onto the bank of the river.
| A．am carrying | B．is carrying |
| C．are carrying | D．are carried |
– Alice, would you mind not playing the guitar? I ______ on the phone.
– Oh, sorry, mom.
| A．talked | B．talk |
| C．have talked | D．am talking |
---Where is Peter?
--- He ___________ dinner for his parents at home.
| A．cooks | B．cooked |
| C．has cooked | D．is cooking |