Love means you care about the ______ of a person, that is, you hope he or she can lead a happy life.
| A．authority | B．belief | C．preference | D．welfare |
The first thing ________ we should do is to master the basic grammar.
| A．which | B．that | C．as | D．of which |
Diamond, _________, is the hardest of all materials.
| A．like we know | B．since we know | C．we know | D．as we know |
He is not such a man ________ cares for himself only.
| A．who | B．that | C．whom | D．as |
—Tomorrow is a holiday. Why are you doing your homework now?
—I am doing these exercises so that I won’t have tomorrow.
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| A．to | B．it | C．them | D．for |
I like getting up early in summer. The morning air is good.
| A．to be breathed | B．being breathed | C．to breathe | D．breathing |