From the cheers and shouts of _____, I gathered that he was winning the race.

　　A. stimulus B. urgency  C. encouragement D. promotion

Scientists think they have _____ in their attempt to find the causes of some major dieases.

　　A. broken through    B. worked out

　　C. fallen out        D. got round

The _____ of his clothes indicated too clearly that he had been playing football.

　　A. state  B. condition C. occasion   D. situation

I support your decision, but I should also make it clear that I am not going to be _____ to it.

　　A. connected    B. fastened    C. bound    D. stuck

 Alice was very sorry to hear that her grandmother had _____ two days before.

　　A. broken off    B. passed off　C. given away    D. passed away

I remember her face but I cannot _____ where I met her.

　　A. recall    B. remind    C. remember    D. remark

While typing, Helen has a habit of stopping _____ to give her long and flowing hair a smooth.

　　A. occasionally    B. simultaneously 　C. eventually      D. directly

These continual _____ in temperature make it impossible to decide what to wear.

　　A. alterations  B. vibrations C. waves   D. fluctuations

A lion at  _______  is really a great threat to the citizens.

A. park             B. cage             C. zoo              D. large

. Now then, children, it’s time you _________.

       A. washed and dressed                         B. are washed and dressed

       C. will wash and dress                         D. were washed and dressed