变成祈使句哦We boys have to be careful when we cross the road.(变成祈
We must be careful when you go _____(cross) the road.
We must be careful when we( )the road.
You must be careful when you cross the road.(改为祈使句)
be careful to cross the street when we meet heavy ______(tra
填空 we must be careful when we___ the road
You should be careful when you cross the m____ road .
Be careful when you walk cross the road改错
Paul,______(be) careful when you cross the road.
be careful when you go --------(cross) the road
When you cross the road,be careful of ______.
We must be careful_____(cross) the road.
We must be very careful when we go across the m___ road