This washing machine is environmentally _______ because it uses less water and electricity than older models.
| A．friendly |
| B．various |
| C．common |
| D．changeable |
Listen! Do you hear someonefor help?
| A．calling | B．call | C．to call | D．called |
She can’t help ______ the house because she’s busy making a cake.
| A．to clean | B．cleaning | C．cleaned | D．being cleaned |
When and where to build the new factory ____yet.
| A．is not decided | B．are not decided | C．has not decided | D．have not decided |
Tom as well as two of his classmates _____invited to the party.
| A．was | B．were | C．have been | D．had been |
The old ____well looked after by the government in China.
| A．is | B．are | C．has been | D．was |