I was about to go to bed _____ one of my old classmates made a call to me.

A. when             B. as          C. while       D. that

 Mr King, _____ legs were badly hurt, was quickly taken to hospital.

     A. who                   B. that      C. whom                D. whose

 He was generally _________ to be the finest poet in the land.

A. received       B. regarded        C. seen         D. acknowledged

 Students are encouraged to _________ the design competition for robots at the university.

A. take part            B. operate          C. join to      D. participate in

 The plan has to be _______ to meet the real situation.

A. adjusted            B. adapted          C. produced      D. refounded

 I ______ my university professor in the supermarket near my house, which was out of my expectation.

A. came out           B. came across        C. came about  D. came along

 To qualify yourself for this kind of new job, I recommend that you ________ some online courses.

   A. to take      B. taking       C. take      D. would take

 ________ I can see, there is only one way to solve this problem.

A. As far as    B. Even if       C. As long as     D. As soon as

 It is the first time that I _____ abroad.

    A. have been              B. was   B. will have been          D. am

请你以一名中学生的名义写一封100字左右的信，呼吁世界各国的中学生帮助拯救大熊猫（giant panda ）。信的主要内容如下：

（1）大熊猫是中国的稀有（rare）动物，也是世界稀有动物之一，为中国人民和世界人民所喜爱;

（2）大熊猫生长在山里，以某种竹子(bamboo)为主食。由于山林遭破坏，竹子被砍伐，大熊猫觅食越来越困难，正濒临灭绝；

（3）我国已建立数个自然保护区（conservation zone）以保护大熊猫，但需要更多的资金；

（4）我们热切需要一切关心爱护野生动物的人伸出援助之手，帮助保护大熊猫，使它们永远和人类生活在一起。