He is waiting outside the ________office.A.doctor B.doctors C.doctor's
_________ at a red light.A. Slow down and stop B. Stop and wait C. Go
You can go at a ____ light.A. red B. green C. yellow
In the USA people ___ bikes must wear helmets.A. on B. go C. at
Is it far ____ here?A. near B. from C. next
I must pay attention ____ it.A. to B. to C. in