27.A.sad B.satisfied C.excited D.enjoyed
26.A.realized B.heard C.recognized D.witnessed
25.A.children B.family C.guests D.friends
24.A.who B.what C.she D.which
23.A.and B.except C.even D.but
22.A.enjoyed B.found C.missed D.lost
21.A.ways B.means C.methods D.senses
19. If you want to do the job once more, you’d better be more careful _____ you make mistakes.
A. where B. so that C. in case D. when
18. If it were not for the fact that he _____ busy, he would come to your birthday party.
A. was B. is C. should be D. had been