选出不同类型的一项。
#17262
A
pen
B
ruler
C
pencil
D
quilt
推荐题目
—Do you know when World Non-smoking Day is?—_____________.
#17272
A
It’s a fine day
B
It’s May 31
C
It’s Sunday
D
It’s time to give up smoking
His name is Alan Robert Smith. His family name is____________ .
#17250
A
Alan
B
Robert Smith
C
Alan Robert
D
Smith
It’s necessary for human beings to breath _______ and plants can produce it.
#17259
A
CO2
B
H2
C
O2
D
N2