but they must wait before the green light is s_____ if they
but they must wait before the green light is s_____ if they
They must wait until the red light changes to green 是什么意思
they must wait until the lights are green
When the light is ____,you must wait at the crossing.A、green
you must wait for the green light .改为否定句
Don't cross .We must wait ()the green light
This is the Green(). They're Singapore but they()in China no
Don’t ().The light is red .We must wait
the girl must wait for the green light 改为一般疑问句,并进行否定回答
修改错误You must wait the green light when you want to cross the
There is no light in the dormitory.They must have gone to th
You must wait for the green light 如何改不祈使句