There is no _____ that phones play an important role in the modern life.A.question B. doubt C. problem
“______ do you exercise?” Three times a week.”
A: May I go out to play football, Dad?B: No, you ________. You must finish your homework first.
In China when the traffic light is red, you ________ cross the road.
Bring a map of China because you _______ want to travel around.
What ______ at seven yesterday morning?