It is reported that between the year 1550 and 1950 about one kind of living things__

It is reported that between the year 1550 and 1950 about one kind of living things___each year .

#93811

died out

died of

died from

died down

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I don’t think they will help us,          ?

#93215

do I

don’t I

will they

won’t they

We were swimming in the lake _____ suddenly the storm started.

#92378

when

until

while

before

He was________rude________she refused to reply.

#91876

so；that

very；that

too；that

such；that

 ______ difficult it is, he is determined to ______ the experiment.

#93920

No matter how; have a go at

However; have a go for

Whatever ; have a go

No matter what; have a go at

— _______  no ad during TV plays.—Great move! I cannot tolerate those annoying ads appearing every several minutes.

#92492

There is said to have

It is said to have

There is said to be

It is said to be

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