A Wechat (微信) is an invention __________ can help people talk to friends, share photo, ideas and feelings freely.
—How about taking a walk after dinner?—_________.
My sister ______ go to bed _______ the program was over.
The speaker raises her voice ________ all the audience could hear her.
It’s not easy to ________ every one.
Mary is a humorous people. ________ she says always makes us happy.