when _a diary ,we must be careful about what to write down
when _a diary ,we must be careful about what to write down
So we must be careful when we use the Internet.
We must be careful when we( )the road.
填空 we must be careful when we___ the road
We must ___(be) careful.
When the fire d----- is high,we must be careful.We must not
english英语题Must I write all the words down now?No,you _A.must
We must be very careful when we go across the m___ road
We must be careful when we play sports. 变为一般疑问句
when crossing street,you must be careful
We must be careful.怎么改祈使句
We must be careful when you go _____(cross) the road.