The reason for his success is ______ he worked very hard.
| A．why | B．that | C．whether | D．how |
The police have ________anyone with information to come forward and talk to them.
| A．admitted to | B．appealed to | C．allowed for | D．called for |
I can’t find a proper dictionary _______ I can turn in my study.
| A．to which | B．up which | C．on which | D．for which |
Sit on the edge of _____ bed _____ minute before putting your feet on the floor.
| A．/；a | B．the；the | C．the；a | D．/；the |
The man preferred ______ in the room to read to ______out for a walk.
| A．staying, go | B．to go, going | C．staying, going | D．to stay, going |
Rather than ______, he preferred to stay here.
| A．going | B．to go | C．went | D．go |