The police _____ searching for a tall dark man with a beard. Till now more than one person _____ suspected.

A. is; is　 B. is; are 　C. are; is　 　　D. are; are

The good thing about children is that they _______ very easily to new environments.

A. adapt 　　　　 B. appeal　　　　　 C. attach　　　　　 D. apply

—What fruit is in season now??

—Pears and apples，　　　 .?

A.I know　　　　　　 B.I think　　　　　 C.I see　　　　　　 D.I feel

Give this to _____ you think can do the work well.　　

A who　　 B whoever　 C whomever　　 D however

—What made little Tony so unhappy and cry in his room?

—　　 to go hiking with his brother.

A．Having not been allowed 　　　　　 B．Not having allowed

C．Having not allowed 　 　　　　　　 D．Not having been allowed

As is known to all, biology is      .
    A. science of the life B. the science of life  C. the science of the life D. science of life

根据反应式：2NaHCO₃Na₂CO₃＋CO₂↑＋H₂O,2Na₂O₂＋2H₂O===4NaOH＋O₂↑，2Na₂O₂＋2CO₂===2Na₂CO₃＋O₂；可知：2mol NaHCO₃ 生成CO₂和H₂O各1mol，Na₂O₂只有1mol，故其恰好和CO₂反应生成Na₂CO₃和O₂，气体排出后，只剩余Na₂CO₃。

The program of Avenue Stars will be 　　　　live by CCTY III tomorrow.

　 A．interviewed B．covered　　 C．shown　　　 D．put

— I should have gone to the wonderful concert with you yesterday.

— _____. If possible, I wish I would have another such chance.

A. Yes, you should      　 B. Take it easy

C. What a shame         　 D. Don’t worry