We must do something to keep the roof ________ in.

[　　]

There are ________ mistakes in your exercise.

[　　]

You can't tell him anything: he's ________ pig-headed.

[　　]

You've been doing ________ 

--you should take a holiday.

[　　]

Julie is one of those women who are always ________ the latest fashions.

[　　]

They congratulated us and also urged us ________ our good work.

[　　]

A．to catch up

B．to catch up with

C．to keep up

D．to keep up with

In the drive ________ the nation's best, more than 300 items in Beijing hit their target.

[　　]

A．to catch up

B．to catch up with

C．to keep up

D．to keep up with

________ where you are so that you don't get lost in the crowd.

[　　]

If you don't eat now, you'll just have to ________ hungry.

[　　]

Promise me what happened last night will ________ a secret between us.

[　　]