If you don't know that ________ is the mother of success, your are sure to be ________ in life．

A．failure; failure

B．a failure; a failure

C．a failure; failure

D．failure; a failure

With he help of his friends, he has ________ a good business over the years．

A．built up

B．made up

C．cut up

D．grown up

"We can't go out to play football in this rainy weather, " said Bob, ________ out of the window disappointed．

A．look

B．to look

C．looked

D．looking

The twins were so much alike; I could hardly ________ Tom．

A．pick up

B．pick out

C．pick off

D．pick at

By far, there are many problems ________ to be solved．

A．remaining

B．remained

C．being remained

D．to remain

I don't think ________ possible to master a foreign language without much memory work．

A．this

B．that

C．its

D．it

The patient was warned ________ oily food after the operation．

A．to eat not

B．eating not

C．not to eat

D．not eating

Susan, ________ university student from European, teacher me ________ art in he spare time．

A．an;/

B．a; the

C．an; the

D．a;/

You will be successful in your study ________ you have confidence．

A．before

B．once

C．until

D．though

________ surprised me most was to see so many women crying sadly there．

A．That

B．It

C．Which

D．What