When he was asked about the question where he was last night, he was ______.[ ]

Nowadays, either 21st Century or other English newspapers _____ increasingly popular among us students.

Have you returned the book to the library ____ — Yes, I have ____ returned it.

bout camping this weekend, just fora change — OK, __ you want

It’s pity that some children prefer to eat junk food ________ it’s not good for their health.