Our teacher is coming．Please stop ________ and keep ________．

talking; quiet

to talk; quiet

talking; quietly

to talk; quietly

There are many fish in this lake, and the birds can catch ________ food．

it as

them as

them for

they as

I like reading．I borrowed a book last Monday and kept reading 20 papes every day．But I was busy last Thursday and read no page．How many pages did I read this Monday?

160 pages

140 pages

120 pages

20 pages

We’d better keep the windows ________．It’s so hot here．

opened

opening

open

opens

Please give me a ring when you ________．

return

returns

will return

return back

What does“＞”mean?It means ________．

smaller than

more than

therefore

less than

What’s the short form of centimetre?

cm

m

km

mins

The number of the students in our class ________ fifty．

is

be

are

am

We found ________ to sleep．

difficult to get

it difficult getting

it difficult to get

that difficult to get

Today the forests are getting fewer and fewer．We must ________ down too many trees．

keep people from cutting

prevent people from cutting

stop people cutting

all the above