Things made of plastic are usually _______, but they are _______ to get polluted.
| A．cheap; easy | B．cheap; easier |
| C．cheaper; easy | D．cheaper; easier |
His father looked_____at my medal. He looked_______.
| A．happy;happy | B．happy;happily | C．happily;happy | D．happily;happily |
We must stop the children from_____ with fire.
| A．play | B．to play | C．playing | D．are playing |
Can you hear the girls ______in the next room?
| A．sang | B．tosing | C．singing | D．sing |
We will go on a trip if it______tomorrow.
| A．won’t rain | B．doesn’t rain | C．rains | D．will rain |
—— ______________?
—— He is tall and strong．
| A．How is he | B．What does he like |
| C．What is he | D．What does he look like |