Cheer up! Everyone may have periods in their lives ________ everything seems tough．

A．when

B．where

C．which

D．That

Driving in rush hour traffic ________ be very dangerous, so you ________ be too careful．

A．should; ought to

B．could; should

C．might; mustn't

D．can; can't

Though the suspect refused to admit that he had stolen the precious diamond at first, he ________ and admitted everything when he was shown the videotape．

A．broke up

B．broke away

C．broke down

D．broke into

Encourage your children to try new things, but try not to ________ them too hard．

A．draw

B．strike

C．rush

D．push

Once in bed, I ________ for twenty minutes and then turned out the light．

A．have read

B．was going to read

C．read

D．was reading

It's ________ that parents not allow their kids under 12 to ride bikes to school for safety．

A．considered

B．expected

C．supposed

D．recommended

My favorite room is the tidy study with colourful walls, ________ I can enjoy reading．

A．where

B．when

C．as

D．which

After a long journey, the pioneers finally reached ________ is now called The Great Late．

A．which

B．that

C．what

D．where

It is said that some people living in SouthAsia have a ________ for snakes, treating them as their friends．

A．preference

B．referrence

C．pressure

D．permission

Sales of CDs have greatly increased since the early 1990s, when people ________ to enjoy the advantages of this new technology．

A．begin

B．began

C．have begun

D．had begun