- Look! The tree is growing well. When _____?
-Three years ago.
A. will it be planted B. did it plant C. was it planted D. is it planted
Your idea sounds great. Let’s _____.
A. try on it B. try it on C. try out it D. try it out
Chen Wei isn’t at school today ________ he is taking a robot competition in Shanghai.
A. so B. because C. before D. if
We ate rice and fish yesterday and we ate noodles _____.
A. as far as B. as soon as C. as well D. as long as
We should stop factories from _____ the river.
A. pollutes B. polluting C. pollution D. pollute
Before taking the medicine, you should _____ the instructions on the bottle.
A. look after B. look for C. look up D. look through
