当有人问你“Where is your book?”时,你应该回答: A. This is. B. It is. C. Here it is.
( ) Let's it. A. do B. doing C. does
( ) May I two books,please? A. has B. do C. have
( ) — is my book? —It's on the desk. A. How B. Where C. What
( ) I know. A. don't B. doesn't C. am
( )—What's this? —It's book. A. a B. an C. the