Since entry into high school the students have been ____ staying up late in the evening and getting up early in the morning.

A. admitted to      B. allergic to      C. accustomed to    D. attached to

 —Was it under the tree _______ you were away talking to a friend?

—Sure. But when I got back there, the bike was gone.

A. that               B. where               C. which                D. while

----How did you like Nick’s performance last night?

----To be honest, his singing didn’t _______to me much.

A. appeal　　　　 B . belong　　　 C refer　　　　　 D. occur

 Some insects ______ the colour of their surroundings to protect themselves.
A. take in         B. take off        C. take on         D. take up

 Mothers holding jobs outside the home should have _______ schedules to make it easier to care for their children. 

A. heavy          B. smooth        C. flexible          D. complex

 We lost our way in that small village, otherwise we ________more places of interest yesterday.

   A. visited          B. had visited     C. would visit       D. would have visited

 Had it been possible I would have gone to the movies, but I ________________ busy.

   A. had been           B. am                 C. was                D. would be

 In some developed countries, larger population is ______________ in their big cities.

   A. approved          B. gathered        C. concentrated    D. fixed

 Accurately, my granny has got no hobbies at all ______ you think watching TV as one.
    A. if                       B. while             C. after                  D. unless

 A person ________ with H7N9 viruses will be more likely to die of lung dysfunction.

A. developed         B. infected         C. injected             D. progressed