In the past 30 years China ______ great advances in the socialist revolution and socialist construction. a. has made b. have made c. had made d. having made
The teacher asked us ________ in our reports before class.
Tom was the first ________ he was wrong.
—Send me an email when you are free, will you? —________.
Many students are ________ chatting online, which wastes them plenty of time.
The crowd ________ eastward, believing that they can find gold there.