86. he to go to the dentist because he has toothache.
a) ought b) must c) should
87. our english lessons at school were very boring. we long exercises and learn a lot of
grammar rules by heart.
a) must to write b) must write c) had to write
88. if we study, we could go out.
a) didn't have to b) had to c) didn't have
89. use your telephone, please.
a) may i b) should i c) must i
90. you come if you don't want to.
a) had to b) needn't c) didn't have to
91. if we go to town, do some shopping.
a) i'll be able to b) i can c) i ought
92. in britain you drive a car when you are seventeen.
a) must b) are able to c) are allowed to
93.
93. that be true! it's absolutely impossible.
a) can't b) must c) needn't
94. you use my dictionary as long as you like.
a) must b) have to c) may
95. we hurry. we've got plenty of time.
a) can't b) needn't c) must
96. there is nothing i do about it.
a) can b) may c) don't have to
97. you go there at once. it's really very urgent.
a) don't have to b) needn't c) must
98. are these anna's jeans? - they to her. anna never wears jeans.
a) may not belong b) might not belong c) can't belong
99. why didn't you help them. you
a) should be helping b) should have helped c) should help
100.
which bus should we take to get to the zoo? - bus number 43 there. but i'm
not sure. ask the driver.
a) could go b) must go c) might go