问题
Listen! Someone ______ in the next room.
A:sing
B:singing
C:is singing
D:are singing
B:singing
C:is singing
D:are singing
正确答案是：
同类题型
What’s his phone number?-_______ 257-6890.
Whose book is this? There is no name on it.—Let me see. Oh, it’s . I lost it a few days ago.
I can’t mend the caryour help. [ ]
He is going to radio Beijing.He’s going to give interview on Starsearch
What’s ______ favorite subject?—____favorite subject is Chinese.