---Is there any vaccine(疫苗) against H1N1 flu that can be used on humans? ---No, but scientists are working to develop ______.

试卷相关题目

• 1---Have you got any job offers? ---No．I ______I'll not give up，whatever the result is.

  A.waited

  B.have waited

  C.had been waiting

  D.have been waiting

  开始考试点击查看答案
• 2---How long______you______here? ---About a week. Afterwards I will go to Beijing.

  A.are; staying

  B.have; stayed

  C.did; stay

  D.do; stay

  开始考试点击查看答案
• 3Will all those _____ the proposal raise their hands?

  A.in relation to

  B.in excess of

  C.in contrast to

  D.in favor of[注释]

  开始考试点击查看答案
• 4There is no doubt that he is a good professor__________he is doing fine.

  A.but

  B.because

  C.so

  D.yet

  开始考试点击查看答案
• 5Sam has been appointed ____ manager of engineering department to take ____place of Tim

  A./; /

  B.the; /

  C.the; the

  D./; the

  开始考试点击查看答案
• 6---Shall we ______ for half an hour and have a tea? ---I can't agree with any more.

  A.break off

  B.break down

  C.break up

  D.break out

  开始考试点击查看答案
• 7Here are some of the suggestions you need _______ your hair

  A.taking care of

  B.to be taken of

  C.to take care of

  D.take care of

  开始考试点击查看答案
• 8We are living in an age ______ many things can be done on computers and the Internet.

  A.which

  B.that

  C.whose

  D.when

  开始考试点击查看答案
• 9---I've got a headache again! ---Sorry to hear that. Walk to work every day and you'll soon back in ______

  A.situation

  B.condition

  C.position

  D.attention

  开始考试点击查看答案
• 10You should keep it in mind: Don't ____ important things too quickly; instead, you should think twice before you go

  A.decide on

  B.depend on

  C.concentrate on

  D.focus on

  开始考试点击查看答案