A. climb, climbing B. climbing, climbing

C. climbing, climb D. climb, climb

—It’s ______.

A. About at six B. at about six C. at six D. six.

【题目】- Can you work out the problem? - Sorry, I can ___________ understand it.
A.almost
B.quite
C.nearly
D.hardly

—________. Better luck next time.

A. No problem B. It’s up to you

C. You’re kidding D. Never mind

【题目】- Do you think the rain will stop tomorrow?
-__________. It has rained for ten days. It's too wet everywhere.
A.I hope not
B.I'm sure it is
C.I'm afraid it will
D.I hope so