In 1948, three American scientists invented ____ transistor, which is ____ small electronic device to control an electric current.

A．the; a            B．a; a              C．the; the           D．a; the

— Has Yang Liping returned from Yunnan yet? I’d like to meet her.

— Sorry. She ____ back here only for last weekend.

A．has been          B．would be          C．had been          D．was

--- Could you introduce me a high quality car?

--- My pleasure. ____ well even on wet roads, this kind of car is very popular.

A．Handled          B．To handle          C．Handling          D．Being handled

—Nothing wrong with it, ____?

—Yes. The computer says, “Please check this disk before entering data.”

A．is it              B．has it             C．does it            D．is there

Much ____ he has a good taste for China’s Football Matches, he can’t avoid being influenced by the side effects of the football gambling.

A．that he claims      B．does he claim      C．it is that he claims   D．as he claims

In Scandinavian countries it is common ____ for the husband to stay at home to look after the baby.

A．use              B．practice           C．sense            D．idea

Many people have been ill from a strange disease these days, _____ we’ve never heard of before.

A．it                B．that              C．one              D．this

Three minutes earlier ____ we could have caught the early train to Philadelphia.

A．or               B．but?            C．and              D．so

Many a student ____ going to have themselves ____ in the hospital.

A．is ; to examine      B．are ; examine      C．is ; examined       D．are ; examining

——The switch to more low-carbon energy, I think, is _____.

——I agree with you.

A．in a way           B．on the way         C．by the way         D．in the way