My toothache _________ me．I thought it was going away, but it is getting worse now．

A．kills

B．is killing

C．has killed

D．killed

She must have ranked her birthday presents in order of _________ because the top one is her favorite．

A．value

B．time

C．interest

D．preference

For some time the discussion went with no one saying _________ word．Alice finally broke _________ silence．

A．a; the

B．the; a

C．a；不填

D．the；不填

The next morning we went to _________ lecture about Pompei, which was founded in _________ 8^th century BC．

A．the, the

B．a, /

C．/, the

D．a, /

Only when all the fish in the lake died _________ how serious the pollution was．

A．did the villagers realise

B．the villagers realised

C．had the villagers realised

D．the villagers had realised

Now that we didn’t reach any agreement, we’d better set another day for _________ talks．

A．bigger

B．deeper

C．further

D．greater

I can’t thinking of living in a place _________ has no seasons．It seems so strange．

A．what

B．which

C．in which

D．where

Five people were reported _________ in the accident．

A．killing

B．to be killed

C．killed

D．to have been killed

The trouble with resources as coal, oil and gas _________ that they are not renewable．

A．has been

B．is

C．have been

D．are

If the wind doesn’t _________ before three o’clock, we won’t be able to take off today．

A．go up

B．go down

C．go off

D．go by