The best times to visit Shangri-la are spring and autumn ____ the temperature is at its mildest.

________ seems to be a strong competition in China for senior high students to enter college or university[ ]

you can’t read or write，how can you find a good job?

Sorry, Sir. I can’t remember all the new words we learn every day.—________. Practice more.

He is ill today, so he stay at home.