Humans are cutting down the forests to ________ the land for other uses.
| A．clear | B．destroy | C．cover | D．protect |
Nowadays,_______of students’ time ______been spent on studies.
| A．three fourths, has | B．three fourths, have |
| C．thirds four, have | D．third fours, has |
––Were your two friends at home yesterday?
––No, We ______went to Hangzhou Park.
| A．both | B．neither | C．all | D．none |
I’ll never forget the days ____ I spent with my grandma in the countryside.
| A．that | B．when | C．what | D．Who |
-I saw Mark on the playground just now.
–No, it _______ be him. He is ill in bed at home.
| A．can | B．must | C．can’t | D．mustn’t |
You can’t imagine _______ when they received these nice New Year presents.
| A． how they were excited |
| B． how excited they were |
| C． how excited were they |
| D．they were how excited |