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g) Don't be silly. You … expect me to believe you!
h) We're not sure but we … go to Prague for Christmas this
year.
i) I learn to fly! You … be joking!
j) Bill cooked the lunch, so you … expect anything special!

X. Rewrite each sentence so that it contains can, could, must, have to
or should (including negative forms)
a) I'm sure that Helen feels really lonely.
..Helen must feel really lonely
b) You're not allowed to park here.
c) It would be a good idea if Harry took a holiday.
d) I'm sure that Brenda isn't over thirty.
e) Do I need a different driving licence for a motorbike?
f) What would you advise me to do?
g) Mary knows how to stand on her head.
h) You needn't come with me if you don't want to.
i) It's possible for anyone to break into this house!
j) The dentist will see you soon. I don't think he'll be long.

XI. Choose the most suitable response to each comment or question.
a) A: What did I do wrong?
B: 1) You shouldn't have connected these two
wires. 2) You didn't have to connect these two
wires. b) A: Why is the dog barking?
B: 1) It should have heard something.
2) It must have heard something.
c) A: Why are you home so early?
B: 1) I needn't have worked this afternoon.
2) I didn't have to work this afternoon.
d) A: Why did you worry about me? I didn't take any risks.
B: 1) You must have been injured.
2) You could have been injured.
e) A: You forgot my birthday again!
B: 1) Sorry, I should have looked in my diary.
2) Sorry, I had to look in my diary.
f) A: We had a terrible crossing on the boat in a storm.
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