--Do you have any plans for this summer vacation?--I'm not sure. I ___ take a trip to Taiwan.
It is my favorite book which is about _________.
China is developing _________ of all the countries in the world.
A moment, please.I'm checking if Mr. Smith _________ free tomorrow.
—Is Jessica giving us a speech this evening?—No, it _________ be her.She _________ to Japan.
—Sorry, sir. I made a mistake again.—_________ Practice more and you will do better.