He was brave enough ___________ for the school volleyball team and succeeded.
| A．try out | B．to try on |
| C．to try out | D．to try |
There are______ living things on the earth. We must value our home—the earth.
A. millions
B. million of
C. millions of
-How long can I _______ the book?
-Two weeks. But you shouldn’t lend it to others.
A. keep B. borrow C. Lend
–Where is your father, Ted?
-He _______ Shanghai on business. He ________there many times.
A.has gone to, has gone to
B. has gone to, has been to
C. has been to, has been to
What _______ bad weather! It’s raining again, and it’s dark outside.
A. a B. an C. /
---Please don’t make any noise in the reading room. ---_______________.
| A．Sorry, I don’t | B．Yes, I won’t |
| C．Sorry, I won’t | D．OK, I didn’t |