— What are the _______ doing there?— They are busy _______ their science experiment.
#29439
A
Boys students; to do
B
Boy students; to do
C
Boys students; doing
D
Boy students; doing
推荐题目
He is of medium build.
#27706
A
not tall or short
B
thin or heavy
C
of medium height
D
not thin or heavy
________mothers can’t go to the meeting ,because they have gone to New York on business.
#29750
A
Alice and Lily’s
B
Alice’s and Lily’s
C
Alice’s and Lily
D
Alice and Lily
— How many ____________ can you see in the kitchen?—Three.
#28129
A
cartons of oranges
B
cartons of orange
C
carton of oranges
D
carton of orange
Hello!This is my ____,my mother’s sister.
#28601
A
parent
B
cousin
C
uncle
D
aunt