问题

Do you know ________ Jenny will go to Beijing—I’m not sure.She may go there by train.

A:why
B:when
C:whether
D:how;

正确答案是：

同类题型

Emergency line operators must always _____ calm and make sure that they get all the information they need to send help.[ ]

The conference was held to discuss the effect that tourism has ______ the wildlife in the area.

The girl didn’t know who ______ for the broken vase

The number of people applying for the job________one hundred，but a number of them________not accepted for various reasons.

To our surprise, at the back of the classroom ______ many teachers from different parts of the city.