--- John is said to have written two books last year.

一Yes, so he＿＿．They are both about the Second World War.

A.is   B. does

C. has D. did

Vitamin D gets produced when animals are exposed to direct sunlight, for＿reason, it

is always advisable to give them chances to spend time in the sun.

A. whose 　B. that 　

C. which 　D. its

In the middle of February, the weather＿＿favorable for work, the workers began to repair and secure the dam of the river.

A. was 　      B. being　

C. would be 　D. to be

一Did you go to Taylor Swift's concert last night?

一I would rather I＿＿．But I was preparing a report for my boss.

A. did　  B. had 　

C. would　 D. might

The local guide told the explorers that ropes and knives were＿＿wanted to go into the inner part of the mountain must take along.

A. that whoever　 B. what who 　

C. what whoever 　D. that who

In many cities of China, if an ambulance is＿＿in a traffic jam, police will respond to the emergency.

A. held up 　  B. held back 　

C. held down 　D. held out

一I think I saw Mr. Smith at yesterday's party.

一He＿＿there. He is now on a business trip in Greece. And he left the day before

yesterday.

A. mustn't have been 　B．couldn't have been 　

C. might not be 　     D. should not be

Until we lose them, scarcely＿＿ how much pleasure and happiness our ordinary lives offer.

A．we realize 　    B．do we realize 　

C. did we realize 　D. we have realized

--- Mr. Li will drive us to Shanghai tomorrow.

一But I suppose taking a train would be a better choice: He＿＿like crazy, you know.

A. drives 　    B. will drive 　

C. is driving 　D. drove

The most challenging job for game designers is to make their games interesting＿＿．

A. to play 　B. to be played　

C. played 　D. being played