48/Mrs Cashmore is in charge of this department
49/Would you like me to get you a cup of coffee?
50/She needn't have spent much money
51/He can't have run away with the stolen goods
52/He has always been in favour of nuclear disarmament
53/She had taken an umbrella to avoid getting wet
54/We must try to keep in touch with each other
55/In spite of not having much acting experience she got the part
56/They may not have been informed about the change of plan
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