75. You ....... obey the law.
a.
can
b. may
C. must
d. might
76. Mary is ...... recommended by her superiors.
a. highly
b. higher
c. high
d. highlier
77. This bed is not ....... for two people to sleep in.
a. As wide
b. wider than
C.
wide enough
d. too wider
78. She likes to go ice-skating ....... the winter.
a. while
b. as
C.when
d. during
79. She hasn't arrived
a. just
b. yet
C. already
d. since
80. I haven't seen around
a. anybody
b. somebody
C. nobody
d. everybody