问题

Look! David is helping his mother _______ the room.
A:is cleaning
B:cleaning
C:cleans
D:clean
B:cleaning
C:cleans
D:clean
正确答案是:
同类题型
Now my father _____ his bike to work every day instead of driving.
We are going to have a partythe afternoon December 25th.[ ]
Do you have enough men to carry these chairs? —No. I think we need _______ men.
Tom is really upset about losing the game, but I think he will ________ it soon.
Is the boy in white clothes your friend, Kangkang? —No. ____ in black clothes is.