Scientists have to work hard to keep _____ with modern discoveries and developments.
A.company | B.track | C.touch | D.pace |
Last week another teacher, Jenny, and I did visit a village _____ is the home of one of the boys, Tom.
A.which | B.where | C.what | D.whose |
—You have finished two cakes?
—Yes. But the second was _____ little bit small, so may I have ___ third one?
A.a; a | B.a; the | C.不填;the | D.不填;a |
_____ underground for 2 years, David says the worst thing is not the danger but the darkness.
A.Working | B.Having worked |
C.To have worked | D.Worked |
She ____ have left school, for her bike is still here.
A.can’t | B.mustn’t | C.needn’t | D.shouldn’t |
According to our school rules, no student ____ be permitted to carry mobile phones in class.
A.will | B.must | C.may | D.shall |