--How do you communicate __________ each other?

--__________ E-mail.

[　　]

_________ people in the world are sending information by Email every day.

[　　]

Many people agree that ______ knowledge of English is a must in ______ international trade today.

[　　]

Sarah hopes to become a friend of _______ shares her interests.

[　　]

Not the teacher but the students ________ to go there.

[　　]

__________ is known to everybody, the moon travels round the earth once every month.

[　　]

No matter how many times you fail, don't _________.

[　　]

A．lose your heart

B．losing your heart

C．lost the heart

D．lose heart

He _____ at home because of his illness.

[　　]

A．had got to be educated

B．had to educate

C．had been educating

D．has got to educating

The prisoner ____ three years in prison.

[　　]

A．was sentenced of

B．was sentenced to

C．was sentenced

D．sentenced to

Now let's think of feedback（反馈）as something _____.

[　　]

A．that we should make to work for us

B．we should make work for us

C．in which we should make work for us

D．we should make work for us in