Răspuns:
C1. 2. Most of our guests arrived by car, but my brother came on foot.
3. You shouldn't be at work with that awful cough, you should be home, in bed.
4. I deleted your email by mistake, I didn't do it on purpose.
5. I usually travel by train when I go to Scotland for business.
6. The movie star met her lover in secret because they didn't want to be seen together in public.
7. Every time I try to see the manager he's either at lunch or on the phone.
8. They've met by chance on a train and they've been in love ever since.
9. If you're not in a hurry, we could go in the city centre on bike.