| A.spend; to watch | B.spend; watching | C.pay; watching | D.pay; to watch |
| A.please not to open | B.please not open | C.not please to open | D.not please to close |
| A.knows | B.wonders | C.cares | D.remembers |
| A.be | B.doing | C.do | D.does |
| A.could | B.should | C.need |
| A.do | B.build | C.make | D.cook |
| A.forgets | B.follows | C.misses | D.joins |