—Sorry, I couldn't find the magazine you asked for.— ____________.
It is desirable that atomic energy should be used for __________ purpose.
—Hi, Tracy, you look tired.—I'm tired. I __________ the living room all day.
Zhu Zhiwen __________ from a poor countryside finally had a chance to show his talent at the Spring Festival Gala.
Some researchers are finding that daydreaming may be important to __________ mental health. Daydreaming, they say, is __________ good means of relaxation.
—What a bright room! Is it a classroom?—No, it __________ the students' reading room.