1) - Will Mary be going abroad this summer?
　- No, she finally decided _____. 
　 A) not going
　 B) not to
　 C) not to be
　 D) not to be going

2) He accepted the cut in salary without complaint because he feared _____. He was afraid of losing his job. 
　 A) to have complained
　 B) to be complained
　 C) to complain
　 D) be complained

3) Mr. Smith doesn't think _____ . 
　 A) a good idea for Mary to go on a diet（节食）
　 B) for Mary to go on a diet a good idea
　 C) to go on a diet a good idea for Mary
　 D) it a good idea for Mary to go on a diet

4) We hope _____ more opportunities to talk with native speakers. 
　 A) have
　 B) having
　 C) to have
　 D) to have had