Only if you put ______ sun there did the movements of the other planets in ______ sky make sense.
| A．the; 不填 | B．the; the | C．不填; the | D．a; the |
First impressions are the most lasting. After all, you never get _____ second chance to make ______ first impression.
| A．a; the | B．the; the | C．a; a | D．the; a |
Word has come _____some American guests will come for a visit.
| A．what | B．whether | C．when | D．that |
Great changes_____ in the small city in the last 20 years.
| A．have taken place | B．took place | C．had taken place | D．are happening |
----Kate really upset Granny.
-----I’m sure she didn’t______.
| A．want so | B．mean to | C．have to | D．hope so |
----Why did you go back to the shop?
-----I left my friend _____there.
| A．waiting | B．to wait | C．wait | D．waits |