.—Hello! May I speak to Mr. Hu? —Sorry, he isn’t in. _________
—How long have you learned English?—So far, we ________ English for more than six years.
Timmy likes Chinese very much. He can’t stop ________ it every day.
We are _____ to see so many interesting books in the library. Now we have _____ to read.
—What do you usually use your computer ________?—I usually use it to search for information.
—Must I leave for the meeting now?—No, you ________. There’s much time before the meeting.