Don’t point _____ others. It’s not polite（礼貌的）.

The meeting lasted as long as three hours and I couldn’t ____________ it until 10 p．m..

She was scared ___________ the yard because she was scared _________ by the big dog ___________ at the gate.

She will tell us why she feels so strongly that each of us has a role ________ in making the earth a better place to live.[]

o you think of the musicteacher——-_____________she is an elegant lady,she can be extremely difficult to work with.