______is now no doubt ________ global warming is a security threat to us all.

______is now no doubt ________ global warming is a security threat to us all.

#94613

It; that

There; that

There; whether

It; whether

推荐题目

_____merely on what the average is , and you’ll remain average.

#92367

Focused

Focus yourself

If you are focused

Focusing

It was not until the beginning of the twentieth century________to explore space.

#93086

did man begin

when man began

that man began

then man began

The literature works is said ______ into many foreign languages ______ in the past few years.

#92565

to have translated; in length

to have been translated; at length

to be translated; at length

to being translated; for length

 Parents always _______ great improvement in study ______their children.

#94903

expect; for

expect; from

hope; for

hope; with

He was________rude________she refused to reply.

#91876

so；that

very；that

too；that

such；that

共1873题