Roses need special care ________ they can live through winter．

A．because

B．so that

C．even if

D．as

All these gifts must be mailed immediately ________ in time for Christmas．

A．in order to have received

B．in order to receive

C．so as to be received

D．so as to be receiving

He went to Shanghai ________ looking for a better job．

A．on purpose of

B．for the purpose of

C．at purpose of

D．on purpose

－Did he break the glass ________?

－No．Quite by accident．

A．on purpose

B．with purpose

C．for purpose

D．at purpose

If it was not an accident(事故), he must have done it ________．

A．on purpose

B．for purpose

C．in time

D．with care

She ________ writing the report after breakfast and handed it in at noon．

A．set about

B．set down

C．set out

D．set off

The continuous rain ________ the harvesting of the wheat by two weeks．

A．set back

B．set off

C．set out

D．set aside

It’s ten years since the scientist ________ on his life’s work of discovering the valuable chemical．

A．made for

B．set out

C．took off

D．turned up

We’d better try to ________ with the experiment, I think．Now let’s ________ with it．

A．go through; go on

B．go on; go over

C．go over; go through

D．go on; go through

My grandfather often told me what he had ________ during the Culture Revolutionary．

A．gone against

B．gone into

C．gone through

D．gone over