Fill in: ago , since , for, already , until , ever , never , before and yet .
1 Vicky had been driving .................... hours so she needed a break.
2 Have you .................... seen a tornado?
3 The last time I went abroad was two years .................... .
4 Tom had .................... left the office when I got there.
5 John had been working as a firefighter .................... 2002.
6 They haven’t come .................... .
7 They waited ................... the hurricane had passed .................... they went outside.
8 Andy had .................... felt an earthquake before

 Vicky had been driving ...for,... hours so she needed a break.2 Have you .. ever... seen a tornado?3 The last time I went abroad was two years .ago. .4 Tom had .... already.. left the office when I got there.5 John had been working as a firefighter ..since.. 2002.6 They haven’t come .. yet . .7 They waited .. until... the hurricane had passed ...before... they went outside.8 Andy had .never.... felt an earthquake before