UNIT 6
100. The teacher told his students to clear up all the trash __________ the ground.
101. There is too much exhaust fume __________ the air.
102. They mustn’t cut down the trees __________ the forests.
103. I’m worried __________ my most recent water bill.
104. Remember to turn __________ the faucet after using it.
105. I want to turn __________ the radio to here the news.
106. The streams will be covered____________ plastics and tins.
UNIT 6 100. The teacher told his students to clear up all the trash __________ the ground. 101. There is too much exhaust fume __________ the air. 102
By Genesis
100. on ( on the ground: trên mặt đất)
101. in ( in: trong)
102. in ( in: trong)
103. about ( be worried about + Noun/V-ing : lo lắng về…)
104. off ( turn off=switch off : tắt)
105. on ( turn on = switch on: mở, sửa đề here -> hear: nghe)
106. with ( be covered with: được bao bọc với)
0. on (trên mặt đất)
1. in (trong không khí)
2. in (trong khu rừng)
3. about (lo lắng về)
4. off (tắt vòi nước)
5. on (mở radio)
6. with (bao bọc bởi)