I. Choose the best answer A, B, C or D for each sentence:
1/ Older people tend to be quite _______ and a bit suspicious of any supposed advances.
2/ He put an arm around her shoulder _______.
3/ Her _______ of English grammar is very extensive.
4/ Marco was working _______ at his desk.
5/ The new job will provide you with _______ experience.
6/ It makes good _______ to buy a large packet because it works out cheaper in the end.
7/ Sharks have a highly _______ sense of smell.
8/ I must say I'm not _______ keen on the idea.
9/ The _______ of booking tickets in advance is that you get better seats.
10/ It's a city _______ for its ski slopes and casinos.
