Trees are very important to our environment. They can stop wind from blowing the earth away.
This is ____ interesting book and it is also ______ useful one.
---I’m going to take part in The Voice Of China (中国好声音) next month. ---_____________.I am sure you will win.
– How long have you _________the bicycle? -- For two weeks.
Smoking is bad for our health. You had better __________smoking.
---Do you know Mo Yan? --- Of course, I have read all the works of Mo Yan ________got Nobel Prize in 2012.