As a result of Yuan Longping’s discoveries, Chinese rice production rose ________ 47.5 percent．

at

in

to

by

As we know, Yuan Longping was born and ________ in China．

brought in

brought down

brought up

brought out

The manager had fallen asleep where he ________, without undressing．

was laying

was lying

had laid

had lied

Everybody in the village likes Jack because he is good at telling and _______ jokes．

turning up

putting up

making up

showing up

Isn’t it time you got down to ________ the papers?

mark

be marked

being marked

marking

A good story does not necessarily have to have a happy ending, but the reader must not be left ________．

unsatisfied

unsatisfying

to be unsatisfying

being unsatisfied

I can’t stand ________ with Jane in the same office．She just refuses ________ talking while she works．

working; stopping

to work; stopping

working; to stop

to work; to stop

I’m sorry．I have a lot of things to see to．I can’t help ________ the cleaning．

to do

does

doing

did

The boy wanted to ride his bicycle in the street, but his mother told him ________．

not to

not to do

not do it

do not to

I must apologize for ________ ahead of time．

letting you not know

not letting you know

letting you know not

letting not you know