The driver should drive ____________ /’ sluli /when the traffic is heavy.

a better grade, you should______ the notes again before the test.

Look at the sign! It says “No Smoking!” You ________ smoke here. It’s dangerous.

The last thirty years _________ the quick development in almost every field in China.

The position ________ he wants to apply is veryimportant for the development of the firm.