Modern medicine is developing quickly and now most eye problems _________ be cured.
can
must
should
need
—_______is your home from our school? —It’s about ten minutes’ walk. A. How long B. How soon C. How far
— Long time no see! — Yes, we haven’t seen each other _____ May 4, 2009. A. since B. in C. on
— Must I finish my homework now? — No, you _____. A. mustn’t B. needn’t C. can’t
— Excuse me, what’s this in English? — It’s _____ eraser. A. a B. an C. the
— Could you tell me now, Mary? — A magazine about science.