The letter ________ from one ________ another until everyone had read it.

[    ]

A. was passed on … to   B. was passed … on

C. was sent … on　　    D. sent … onto

Hard work ________.

[    ]

A. depends on success   B. leads to succeed

C. leads to success　　 D. belongs to success

Do you know ________ will give us a talk?

[    ]

A. who   B. whom   C. that   D. whose

She has two French friends. ________ of them are doctors.

[    ]

A. Each   B. Every   C. All   D. Both

________ you know how to learn English, you'll find it easy to master.

[    ]

A. Once   B. And   C. Only   D. Unless

How long has your brother ________ in the army?

[    ]

A. served   B. joined   C. taken part   D. being

I just dropped in ________ if I could borrow your bike.

[　　]

The headmaster said to us, “Now let's drink ________ the achievements ________ our school!”

[　　]

What about ________ out for a walk?

[　　]

—How is your mother?

—She is ________ .

[　　]

A．very good 　　B．much better