All of us find_______necessary to take exercise every day.
| A．this | B．it | C．that | D．them |
What ways can you think of _________ out the physics problem?
| A．to work | B．working | C．work | D．works |
I don’t know ______to do with the maths problem. It’s too hard.
| A．which | B．how | C．what | D．where |
—Thank you, Mille and Kitty. It was kind of you to help me with my lessons.
—_______.
| A．With pleasure | B．Better not |
| C．Of course not | D．It’s our pleasure. |
— ________ useful tool the computer is! — I agree. It’s ______ interesting as well.
| A．What a ; / | B．How a; the |
| C．What an; / | D．How an; the |
On Sundays, she prefers ________ at home alone ________ with her friends outside.
| A．stay; play | B．staying; to playing |
| C．staying; playing | D．to; to play |