----Can you tell me ______ live a low-carbon(低碳) life ?
----OK. By using both sides of the paper.
A.where’s B.why to C.when to D.how to
I really enjoyed your speech, ______ there were some parts I didn’t quite understand.
A.because B.unless C.though D.after
My grandfather loves keeping pets.He said a pet could help a person feel______.
A.more nervous B.less alone C.less lonely D.more worried
----Where is Tom?
----He’s left a(n) _____ saying that he has something important to do.
A.excuse B.sentence C.news D.message
The problem is too difficult for him. He _______ solve it by himself without any help.
A.can't B.mustn't C.shouldn't D.needn't
----Doctors, it seems that you like to work with animals.
----Yes, I think animals should ______ as our friends.
A.regard B.be regarded C.be regarding D.are regarded