---Do you _________ lots of time exercising every day?
---Yes, it’s good for my health.
A. pay B. spend C. take, D. cost
If you don’t know how to spell new words, _________ in a dictionary.
A. look them up B. look up them C. look them after D. look them for
---Whose book is this?
---It________ be Ning’s because it has her name on it.
A. must B. can’t C. might D. could
There are ______________ birds there in the sky.
A. Million of B. five millions of C. millions of D. five millions
I think teenagers ____________ to choose their own clothes.
A. be allowing B. should be allowed C. be allowed D. should allowed
---Lucy _________ really quiet but now she is very outgoing.
---Yes. She has changed a lot.
A. use to be B. used to C. used to be D. be used to be
