Driving in the mountains can be very dangerous. You can’t be ______careful.

In the past decade, the Internet _____ rapidly. It’s believed that it_____ a greater growth in the future. [ ]

A good friend is like a mirror. Don’t let a little agreement_____ a great friendship.

Seeing the frightening tiger, all the people_____.

The teacher told her Senior 3 students that it was important to ___________ time for relaxation under great pressure.