______ your hand over your mouth when you cough.
#66193
A
Put
B
Putting
C
To put
D
To be putting
推荐题目
Lose one hour in the morning ______ you will be looking for it the rest of the day.
#66311
A
but
B
and
C
or
D
so
-Can you help me? -Yes, your teacher’s advice,in my opinion,and everything will be OK.
#66113
A
Follow
B
Following
C
If you follow
D
Followed
