________ such a good chance, how could she let it slip away?

A．Having been given

B．Having given

C．To being given

D．To have given

Recently some studies have found that learning ________ second language can lead to ________ increase in one’s brain power．

A．a; the

B．不填；the

C．a; an

D．the; an

－________ I stay with you?

－Well, I would rather you ________ me alone for a while．

A．Will; leave

B．Shall; leave

C．Will; left

D．Shall; left

None of them had expected that the middle-aged engineer died ________ his design uncompleted．

A．with

B．from

C．without

D．of

－Your book, Tommy?

－No, Mom, it’s my friend’s．

－Remember to return it to ________ name is on it．

A．what

B．which

C．whose

D．whosever

The project is designed in this way and once ________, nothing can be done to change it．

A．starts

B．starting

C．started

D．having started

If you ________ a mistake in reviewing the report, please bring it to my attention．

A．come along

B．come across

C．come around

D．come about

________ to understand what he doesn’t, he makes a fool of himself．

A．Always pretending

B．Always pretended

C．Having always pretended

D．Always being pretended

Neither her father nor her mother would give ________ permission to buy that CD player．

A．his

B．their

C．her

D．one’s

In face of ________ failure, it is the most important to keep up ________ good state of mind．

A．不填；a

B．a；不填

C．the；不填

D．不填；the