_____ important for us _____wild animals and birds.
| A．It; protect | B．It; protecting |
| C．It’s; to protect | D．They’re; protect |
--- Whose shirt is this?
--- It _______ be Li Lei’s. It is too big for him.
| A．could | B．must | C．can’t | D．might |
I saw many ________ eating grass on the hill.
| A．horse | B．cow | C．rabbit | D．sheep |
—By the way, have you got ______ e-mail address?
—Oh, yes, it is simonland @ hotmail.com.
| A．a | B．an | C．the | D．/ |
— I hear Miss Wang will go boating with us this Sunday.
— ______ We will have a good time.
| A．Good news! | B．Thanks a lot. |
| C．What a pity! | D．Don’t mention it. |
— Can you sing this song in English?
— Of course I can. It ______ often ______ by us kids.
| A．is; singing | B．does; sing | C．has; sung | D．is; sung |