－ Wow! You look different! You ______ wear glasses.
－ Yes, I did. But now I have had an eye operation. I can see clearly without them.
| A．used to | B．were used to | C．had to | D．would |
-- __________ does your brother look?
-- He looks __________ .
| A．What; happily | B．How; happily |
| C．What; happy | D．How; happy |
— Could you teach me how _________ cakes? — Sorry, I don’t know.
| A．make | B．making |
| C．to make | D．made |
I find _______necessary to do everything we can ____________protect the environment.
| A．it; do | B．this is; do to |
| C．it; to | D．it; in order that |
________ Lucy’s pictures. They are nice.
| A．Here are | B．Here is |
| C．This is | D．That is |
Tom likes reading books when he ________.
| A．is free time | B．has free |
| C．have free time | D．is free |