问题

His ability has never been in doubt—-the question is___________ or not he is prepared to work hard.

A:Addicts
B:if
C:where
D:whether

正确答案是：

同类题型

Yesterday I met Amy____________________.

If anything goes __________ your wishes, don’t be sad. There might be something cheerful __________ the corner.

.Alice found a key _________ the door on a small table.

It was in the office my sister works I met the new manager.

Some adverts, like the environmental protection advertisements, ________ to our conscience or our desire to be worthy citizens.[ ]