________ our journey by camel was!
A．What an exciting experience
B．What exciting experience
C．How excited experience
D．What an excited experience
--- I don’t mind telling you what I know.
--- You _______. I’m not asking you for it.
A．may not B．can’t C．don’t have to D．mustn’t
About _______ of the books in our school library are written in Chinese.
A．four-fifth B．four-fifths
C．fourth-fifths D．fourths-fifth
We have so many kinds of guitars for you ________.
A．to choose B．to choose from
C．to be chosen D．to be chosen from
--“Where is Tom?”
--“He hasn’t come to school today, I think he ______be ill.”
A．has to B．should C．may D．can
Which of the following sentences doesn’t contain(包含) an object clause（宾语从句）?
A．Many people believe robots will do most of our work.
B．Scientists should be able to develop plants that grow on Mars.
C．People think that humans on Mars have to wear special boots to make themselves heavier.
D．We all know the next Olympic Games will be held in Beijing.
