Fill in: out of, on, out, in, up on, off. Check

Fill in: out of, on, out, in, up on, off. Check in Appendix 1.
1 Shall we check......that new Thai restaurant tonight? (try
2 They checked ........ at the hotel and they were shown to their rooms, (registered
3 Im just going to check........ things at the office, (make sure sb/sth is alright
4 Lets call a taxi to pick us up and then check ........the hotel, (pay the bill amp; leave
5 Ive checked......the items on my list, (ticked
6 I checked........my brother to make sure he was doing his homework, (мейд sure