Choose the most suitable response to complete each of the following exchanges.

Mike and Susan are talking about changes in the modern society.

- Mike: "Our living standards have been improved greatly."

- Susan: “_______________”

A. try

B. tried

C. have tried

D. am trying

A. highly appreciable

B. volunteers' efforts

C. reconstructing

D. devastating

A. Tom wanted to know when I was starting practising yoga.

B. Tom wanted to know when did I start practising yoga.

C. Tom wanted to know when I had started practising yoga.

D. Tom wanted to know when had I started practising yoga.

A. We should book tickets for the film in advance.

B. It is obligatory to book tickets for the film in advance.

C. It is our duty to book tickets for the film in advance.

D. We needn't book tickets for the film in advance.

A. Unhealthy

B. Packed

C. Cooked

D. Inexpensive

A. No sooner had he realized he had forgotten his book on the bus than he arrived in class.

B. Had he arrived in class, he would have realized he had forgotten his book on the bus.

C. Only after he had realized he had forgotten his book on the bus did he arrive in class.

D. Not until he arrived in class did he realize he had forgotten his book on the bus.

A. Paul likes watching cartoons more than reading comic books.

B. Paul likes watching cartoons as much as reading comic books.

C. Paul doesn't like watching cartoons as much as reading comic books.

D. Paul doesn't like reading comic books as much as watching cartoons.