--- __________ are you so happy?
--- Because it is my birthday.
| A．Why | B．Whose | C．What | D．Who |
—We should _______ humans from ________ down too many trees.
—I agree with you. Trees are very important to us.
| A．keep; cut | B．prevent; cut | C．stop; cut | D．prevent; cutting |
—Ihavenoidea____________ tell herthebadnews.
—I think tomorrow is the best time.
| A．how to | B．when to | C．how can I | D．when can I |
—Neither Mary nor her friends _________ joined the music club because they have no time.
— It’s a pity!
| A．is | B．are | C．have | D．has |
Mr. Li will go to Guangzhou by air. His workmates are ______ him off at the airport.
| A．turning | B．seeing | C．taking | D．putting |
—You should ________ your son. He works harder than before.
—Thanks, I will.
| A．praise | B．punish | C．prove | D．provide |