No matter how bright a talker you are, there are times when it’s better ______ silent

Onlywhen you stay with ____ local people for a period of time will you have ____better understanding of life there.

It’s six o’clock in the morning. Many people ______ in the park.

Go down this street and turn_____/left/.You will see a library in front of you.

Director Wang, a man is waiting to see you outside, _______ he come in?– In a moment. I’ m busy right now.