We must be careful when we play sports. 变为一般疑问句
We must be careful when we play sports. 变为一般疑问句
We must study hard 变为一般疑问句
So we must be careful when we use the Internet.
We must be careful when we( )the road.
We must ___(be) careful.
填空 we must be careful when we___ the road
We play sports every day改一般疑问句
When the fire d----- is high,we must be careful.We must not
We must go now.(变为一般疑问句)怎么变?
we play football afternoon school.变为一般疑问句
We should ( ) water when we play sports.
They must be careful的一般疑问句