—What time will Mr. Green be back to China?—Sorry. I don’t know ________.
More colleges __________ next year for more students to get a good education.
—Millie, how long have you __________ this book?—For over a week.
—Excuse me, could you tell me __________?—In ten minutes.
Computers of this kind __________. They are out of stock (脱销) now.
My teacher has given me lots of __________. They’re very useful.