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It’s not easy to change habits, ______ with awareness and self-control, it is possible.

A．for              B．or               C．but              D．so

John invited about 40 people to his wedding, most of ______ are family members.

A．them             B．that              C．which            D．whom

______we have enough evidence, we can’t win the case.

A．Once             B．As long as         C．Unless            D．Since

— What are you doing this Saturday?

— I’m not sure, but I    go to the Rolling Stones concert

A．must             B．would            C．should            D．might

It was with the help of the local guide ______ the mountain climber was rescued.

A．who             B．that              C．when             D．how

 ______struck me most in the movie was the father’s deep love for his son.

A．That             B．It                C．What             D．Which

— It rained cats and dogs this morning. I’m glad we took an umbrella.

—Yeah, we would have got wet all over if we _______.

A．hadn’t          B．haven’t          C．didn’t           D．don’t

When I was little, my mother used to sit by my bed, ______ me stories till I fell asleep.

A．having told        B．telling            C．told              D．to tell

Recycling is one way to protect the environment; reusing is ______. 

A．a(chǎn)nother           B．the other          C．one another       D．one

The parents were shocked by______news that their son needed______operation on his knee.

A．A; /              B．the; /             C．the; an           D．a(chǎn); an