17. The public expressed ____ concern about the accident.

A. its B. their C. her D. his

18. Are the products of Taiwan____?

A. somewhat like Japan B. something like Japan

C. somewhat like that of Japan D. somewhat like those of Japan

19. - What about the price of these washing machines?

- They are equal in price to, if not cheaper than, ____ at the other shops in the street.

A. others B. it C. that D. the ones

20. My grandparents used to live in ____ is now part of Shanghai.

A. which B. what C. whereD. that