--There goes the bell.--It's time for class. Let's stop .A. talk B. talking C. to talk
Qinghai-Tibet Railway(青藏铁路) was completed last year. It is the __________ railway that connects Tibet with the other parts of China.
Sandra works in a big factory. She’s_________worker.
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.