Look! There are many in the sky. I think it will be tomorrow.
—Where is Mr. Wu? I haven’t seen him for several days.—He ________ America and he ________ from his home since last week.
—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.