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“Which is ________, an elephant or a tiger?” “An elephant．”

A．heavy

B．light

C．heavier

D．lighter

“________ is the population of Hong Kong?” “About seven million．”

A．How much

B．What

C．How many

D．What number

London is in England ________ it’s on the River Thames．

A．but

B．so

C．and

D．or

Shanghai’s population ________ about thirteen million．

A．is

B．are

C．has

D．have

“________ is the capital of the USA?” “Washington DC．”

A．Where

B．What

C．Why

D．Who

Alan’s apples are bigger than ________．

A．I

B．my

C．her

D．Kate’s

There is a big tree behind my house．It’s about ________．

A．20 meters high

B．high 20 meters

C．20 meters tall

D．tall 20 meters

Some monkeys are sitting ________ the tree．

A．on

B．in

C．at

D．of

I’m afraid it’ll ________ me some time to find him．

A．need

B．take

C．use

D．call

Three years ________ a short time．You have to study hard．

A．is

B．are

C．be

D．will be