Question

9. That T-shirt be expensive because it's designed by a famous designer.

   A. can't   B. mustn't   C. must   D. should

Answer 1

9. C

9. C 考查情态动词。句意：那件T恤衫一定 很贵因为它是由一个著名设计师设计的。

can't不可能、不能够；mustn't禁止;must必 须、一定；should应该。