It's not easy ________ sorry to your best friends.

A. to say

B. to talk

C. speaking

D. chatting

My sister is ________ to go to school this year.

A. old enough

B. too older

C. enough old

D. so old

?How long could I ________ these books?

?Only one week.

A. borrow

B. return

C. give back

D. keep

My mother went to the bookshop and ________ about 100 yuan ________ the new books.

A. paid; for

B. took; to

C. spent; in

D. paid; with

My best friend is very worried because he has _________ money to _________ the summer camp.

A. some; spend

B. any; cost

C. no; pay for

D. no; take

When you are ________ trouble. You should ask the policeman ________ help.

A. in; for

B. on; with

C. in; on

D. into; for

You can't borrow colour pencils _______ Li Lei, because he doesn't have colour pencils, _______.

A. to; too

B. from; to

C. of; either

D. from; either

He made us ________.

A. laugh

B. laughing

C. to laugh

D. to laughing

We keep the table ________.

A. clean

B. cleaning

C. to clean

D. to cleaning

It is difficult for robot to do the same things ________ a person.

A. like

B. for

C. to

D. as