21.   We went to Mountain Tai last weekend,       , not surprisingly, was crowded with visitors.

A. that              B. which             C. where             D. when

22.   Jenny can’t resist     to buy the things that she doesn’t really need while shopping.

A. being persuaded   B. persuading       C. to be persuaded   D. to persuade

23.   We        to paint the whole house but finished only the front part that day.

A. set up            B. set out           C. set aside         D. set off

24.   The little girl seldom wears anything other than a red sweater   the season.

A. whatever          B. wherever          C. whenever          D. however

25.         us long believing that talking plants are fantasy, new research has revealed something amazing: it appears that plants can communicate after all.

A. Although          B. For               C. As                D. With