Many students believe the choice of their courses and universities should ________ their own interest．

A．be based on

B．base on

C．be basing on

D．base at

________ get a better score, she has been studying hard all day．

A．So as to

B．In order to

C．So that

D．In order that

－It’s late．I have got to leave now．

－OK ________．

A．Thank you

B．Don’t worry

C．I’m sorry for it

D．Take care

We can never be too careful with our work．We must do as much as we can ________ mistakes．

A．avoid to make

B．avoid making

C．to avoid to make

D．to avoid making

As a secretary, your duties ________ typing letters and answering the phone．

A．contain

B．include

C．have

D．make up

You may pay attention ________ the teacher said in class．

A．to which

B．to what

C．for what

D．for that

The Great Wall travels ________ deep valleys, ________ deserts and ________ mountains．

A．over, across, through

B．through, over, across

C．across, through, over

D．through, across, over

Jane dreams ________ flying in space while her sister dreams of one day ________ famous movie-star．

A．of, became

B．about, becoming

C．for, will became

D．to, becomes

－I don’t like the way ________ he speaks to me．

－I share the idea with you．

A．which

B．in that

C．that

D．by which

The number of people invited ________ fifty, but a number of them ________ absent for different reasons．

A．were, was

B．was, was

C．was, were

D．were, were