Unit5 animals-grammar學案
a. to have lunch b. to eat
c. to eat at d. eating at
48. this problem is said _____ three times.
a. to have been talked b. to have discussed
c. having been discussed d. to have been talked about
49. everybody believed the man ______ away the diamond ring.
a. be taken b. taking c. to take d. to have taken
50. i prefer ____ rather than ______.
a. read； watch b. to read； watch
c. reading； to watch d. to read； to watch
答案：
1-5 dbbaa 6-10 ccaaa 11-15 cadab 16-20 bbaaa 21-25 accab 26-30 dacba 31-35 bcccb 36-40 bbdab 41-45 ddcdb 46-50 ccddb