China made its firm ____ to cut carbon emissions in 2009.
| A．commitment | B．project |
| C．competition | D．comprehension |
—Chris is very clever and never wastes any time doing useless things．
—No _______ he always comes first in the examinations
| A．wonder | B．question | C．doubt | D．problem |
—Is John coming by bus?
—He should，but he _______ not．He likes driving his car
| A．must | B．can | C．need | D．may |
The athlete’s years of hard working _______ when she finally won the Olympic gold medal.
| A．went on | B．got over |
| C．paid off | D．ended up |
_______ the English examination, I would have gone to the concert last Sunday.
| A．In spite of | B．As for |
| C．Because of | D．But for |
The designer asked _______ we were getting on well with the project.
| A．how | B．what | C．if | D．that |