The old lady didn’t know when the house caught fire.
#17205
A
how to do
B
how to do with it
C
what to do
D
what to do it
推荐题目
It’s necessary for human beings to breath _______ and plants can produce it.
#17259
A
CO2
B
H2
C
O2
D
N2
The sign “No Smoking” can be seen ____.
#17268
A
in a hospital
B
in the street
C
in a cinema
D
Both A and C
Children are having a good time in the park.
#17289
A
have fun
B
enjoy themselves
C
having fun
D
playing games