UNABLE
1. George could not ski or skate.
Besides ........................, George could not skate either.
UNLESS
2. I will not be able to get to work if George doesn't give me a lift.
........................ me a lift, I will not be able to get to work
WISH
3. It is a pity I cannot speak French.
I ........................ speak French.
LOOKS
4. Who takes care of all these animals?
Who ........................ all these animals?
DID
5. Chris realised only then that he had lost his money.
Only ........................ that he had lost his money.
TIME
6. I have not seen Sarah since Monday
The ........................ Sarah was on Monday.