She ________ a vase ________ 2000 yuan．

A．by; for

B．purchased; for

C．paid; for

D．spent; on

Tom's mother always tells him ________ too much time playing football．

A．not to spend

B．to not spend

C．doesn't spend

D．don 't spend

________ you start right now, you will be late for school．

A．If

B．Unless

C．Since

D．As

The modern bridge ________ in a month．

A．will build

B．has built

C．has been built

D．will be built

Mr．Smith has successfully ________ the new machine．

A．operate

B．operates

C．operated

D．operating

As we all know, July may be the ________ month in a year．

A．cold

B．hot

C．hotter

D．hottest

The police are ________ the lost child in the forest．

A．searching

B．searching to

C．searching at

D．searching for

The desks are ________ wood．They are for the children in the countryside．

A．made from

B．made

C．made of

D．made into

Electricity is ________ for modern life．

A．unnecessary

B．unpleasant

C．essential

D．unknown

Look! The farmer ________ the duck into the water with a long pole．

A．push

B．pushes

C．pushed

D．is pushing