The limits of a person’s intelligence, generally speaking, are fixed at birth, but he reaches these limits will depend on his environment.
A. where B. whether C. that D. why
In order to find the missing child, villagers all they can over the past five hours.
A. did B. do C. had done D. have been doing
You can change your job, you can move house, but friendship is meant to be life.
A. of B. on C. to D. for
I remembered the door before I left the office, but forgot to turn off the lights.
A. locking B. to lock C. having locked D. to have locked
Interest is as to learning as the ability to understand, even more so.
A. vital B. available C. specific D. similar
—May I help you? You seem to be having some problems.
— , thanks. I think I can manage.
A. All right B. No problem C. It’s all right D. There’s no way
