问题

He couldn’t have finished his homework last night, _________he?—No. You see, he is busy doing it now.[ ]

A: has
B: could
C: must
D: did

正确答案是：

同类题型

Thank you，Lucy. —_____________.

Teachers recommend parents_____their children under 12 to ride bicycles to school for safety.

(2013·高考江苏卷)—Could I use your car tomorrow morning?—Sure.I________ a report at home

Oh，how nice! A picture of the White House— Yes.I take it in____________.

32—Do you think the weather will be all right this summer?—No, _______ we’re luckyThe newspaper says it’ll be very hot anyway