问题

Where is Mr. White—Oh， he hasn’t come yet. He is supposed to _____ in an hour.

A:arriving
B:arrive
C:arrived
D:arrives;

正确答案是：

同类题型

To their delight, they __________got what they had been looking forward to[ ]

下列各句中，加点的成语使用正确的一项是

It may be necessary to stop______in the learning process and go back to the difficult points in the lessons.

Are you allowed ______ the hall at this time—Sorry, I’m afraid not.

The work was difficult, but Tom’s ____expression showed that he would finish it in time.