( )She can't ________ in the lake. A.swimming B.swiming C.swim
( ) — ,where's the book? —I'm sorry. I don't know. A. Excuse me B. I'm sorry C. Sorry
( ) We having an English lesson. A. / B. are C. can
( ) Let's read . A. book B. a book C. the book
( ) —Happy birthday! — . A. Excuse me B. No,I'm not happy C. Thank you
( ) — I come in? —Come in,please. A. Do B. Am C. May