If people ________ the importance of living a low-carbon life earlier, there ________ so many environmental problems now．

A．realized; wouldn't be

B．had realized; wouldn't be

C．had realized; wouldn't have been

D．realized; wouldn't have been

I would really appreciate it if you could keep me ________ of how the negotiation is going on．

A．informed

B．informing

C．being informed

D．to be informed

News came from the school office ________ the school library would be open next week．

A．that

B．what

C．which

D．where

It's helpful to put children in a situation ________ they can see themselves differently．

A．that

B．when

C．which

D．where

The lecture ________ next week aims mainly to clarify the new admissions policy．

A．given

B．to be given

C．will be given

D．is given

The traffic is heavy right now．I ________ arrive a bit late, so could you save me a place?

A．can

B．must

C．need

D．might

It is believed in some science fiction stories that the world may one day be ________ by artificial intelligence．

A．broken in

B．run over

C．taken over

D．filled in

________ the doctors insisted on was that they ________ more respect and sense of security．

A．That; must be given

B．What; should give

C．That; would be given

D．What; should be given

His efforts to raise money for his program were ________ because no one showed any intention to take a cent out of their pockets．

A．in place

B．in vain

C．in effect

D．in advance

While he was seeking for ways to improve the telescope, Newton made ________ discovery which completely changed ________ man's understanding of colour．

A．a; the

B．the; a

C．a; /

D．/; the