( )1. You can find _______ “s” and _______ “u” in the word “bus”.
A. a, an B. an, an C. an, a D. the, a
( )2. —Are the sweaters yours? —Yes , _______.
A. it’s hers B. they’re theirs C. it’s ours. D. they’re ours.
( )3. Does Bob go to work ______ boat or _______ foot?
A. to; by B. with; on C. by; on D. on; on
( )4. There is ______noise in the countryside. People can enjoy nature there.
A. more B. less C. much D. fewer
