Scientists from different countries are working together to ________ a good way to solve the problem．

keep up with

meet up with

catch up with

come up with

The 3-year-oid boy was found ________ in the bathroom．Nobody knows how and when he ________．

dying; died

dead; dying

dead; died

died; dying

Our teacher often tells us that we will never ________ our goal if we don’t work hard．

make

wish

achieve

succeed

－What ________ she say to you just now ?

－She told me that she ________ her key m the room．

did, leave

does, left

did, had left

do, had 1eft

We found ________ to sleep．

difficult to get

it difficult getting

it difficult to get

that difficult to get

We can't pass the exam ________ the teacher's help．

with

under

without

to

If you want a double room,．you will have to pay ________ 50 yuan．

another

other

more

each

－Where is Cathy?

－She ________ the library, She'll be back in a minute．

has been to

has gone to

is gone to

is been in

I know ________ of those people in the room, so I left．

few

a few

a little

little

They ________ for Shanghai tomorrow morning．

leave

will leave

are leaving

both B and C