（题文）（2016·天津）The weather forecast says it will be cloudy with a slight _____ of rain later tonight.
A. effect B. sense
C. change D. chance
We will put off the picnic in the park until next week, ____ the weather may be better.
A. that B. where
C. which D. when
Mary was silent during the early part of the discussion but finally she ____ her opinion on the subject.
A. gave voice to B. kept an eye on
C. turned a deaf ear of D. set foot on
（2016·天津）_____the average age of the population increases, there are more and more old people to care for.
A. Unless B. Until
C. As D. While
（题文）(2016•天津) —I’m thinking of going back to school to get another degree.
—Sounds great! ____________.
A. It all depends B. Go for it
C. Never mind D. No wonder
（题文）(2016·天津) It was really annoying; I ________ get access to the data bank you had recommended.
A. wouldn’t B. couldn’t
C. shouldn’t D. needn’t
