—Is Tom still in New York or already back at home?
—I’m not sure _________. I’ll call to make sure.
| A．if he has been back | B．that he has come back |
| C．why he has come back | D．how he will be back |
The baby is sleeping. Please__the radio.
A. turn on B. him down C. turn up
We will climb the mountain tomorrow_it doesn't rain.
A. if B. although C. since
Boys and girls, the books in the library should______ good care of.
A. take B. are taking C. be taken
-Where’s your father, Tom?
-He__to Changsha.
A. goes B. went C. has gone
Li Na is_______ tennis player in China now.
A. most famous B. the roost famous C. more famous