I.
1/ A
2/ C
3/ A
4/ B
5/ C
6/ D
7/ D
8/ A
9/ C
10/ C
II.
1/ has just opened
2/ died / had never met
3/ lost / has been
4/ Have you seen / saw
5/ hasn't bought / sold
6/ haven't had
III.
1/ mouse, keyboard, disc
2/ socket, plug, lever
3/ library, campus, freshmen
4/ seen, broken, heard
5/ last Sunday, a quarter past six, this morning
V.
1/ interested
2/ disagree
3/ difficult
4/ careful
5/ forgotten
6/ ?
7/ slowly
8/ early
9/ good
10/ correct