Goldfish don’t know __________ to them three seconds ago.—-Really It’s so amazing!

I’ll call you ______ I arrive in Shenzhen—Thanks, and good luck

Helen, your English is pretty good. How can Iimprove my English—I think you can improve your English ______ readingmore.

You may choose one from _________ was left.

He came to my lecture every week, but his look ___ that he was not really interested.