People can open it and let in light and air.
D
举一反三
- People play it in the open air.
- Open the window and let ____ some fresh air .
- We should open the window often to let ( ) in . ( ) A: fresh air B: fresh airs C: a fresh air D: fresh the air
- Air pollution is becoming worse. As is known to all, air to us is ________ water to fish. No one can imagine how human being can live without air.
- The manager told me to open a window and ___________ some fresh air. A: enefit B: ultimately C: Let in D: headquarters
内容
- 0
Please open the window, and let the fresh air _______. A: in B: out C: from D: off
- 1
People can open it in the bank.
- 2
Trees take harmful gas from the air, and ______ oxygen (氧气) into the air. A: let out B: set off C: give up
- 3
中国大学MOOC: Some people become （4） in winter, when the days are dark and most people spend less time in the open air.
- 4
to dirty air can cause people to suffer from