( )1.There is _____“u” and ______“s” in the word “bus”
A. an; an B. a; an C. an; a D. a; a
( )2.There are many _______ on the big tree.
A. leaf B. leaves C.a leaf D. leafs
( )3.What’s your father’s ______.He is a doctor.
A. work B. job C. like D. do
( )4.Can you teach ______ to play football?
A. they B. them C. their D.theirs