3.26. A. try B. mind C. prefer D. stop

A. 　Not at all

B. 　 No, thanks. I’m full

C. 　 You are welcome

D. 　 OK, here you are

A. 　 was cooking

B. 　 cooks

C. 　 has cooked

D. 　 cooked

A. 　difficult

B. 　 expensive

C. 　 beautiful

D. 　 familiar

A. 　 since

B. 　 when

C. 　 as

D. 　 while

A. 　discovered

B. 　 allowed

C. 　 shared

D. 　 mentioned

A. 　 give up

B. 　 giving up

C. 　 to give up

D. 　 having given up

A. 　 check

B. 　 explain

C. 　 describe

D. 　 mark

A. 　address

B. 　 word

C. 　 area

D. 　 picture