complete the second sentence so that it has a similar meaning to the first sentence:
1. Engineering doesn't interest Mark.
Interested
Mark..................................engineering.
2. He said he was sorry he forgot their appointment/
apologized
He......................................their appointment.
3. the hospital in which I was born is being extended.
where
The hospital....................................is being extended.
4. Smoking on train is not allowed.
mustn't
You .......................................on trains.
5. I'm sure they were covering something up.
must
They.........................................something up.