--- do I need to feed the pet dog?
---Twice a day.
| A．How long | B．How much |
| C．How soon | D．How often |
---Where did you meet him?
---It was in the hotel _________ I was staying.
| A．that | B．how | C．where | D．which |
The process of curing a disease is like a war ___ different soldiers fight against an enemy.
| A．when | B．where | C．what | D．that |
In a sports team each player has a clear role，and there are few occasions members are confused or uncertain of their roles．
| A．which | B．that | C．when | D．how |
That so-called football fan doesn’t even know the main difference between the two football teams, _____ surprises all of the people at present.
| A．which | B．what | C．that | D．where |
Can you give me a case ______ this phrase can be used?
| A．when | B．that | C．where | D．Which |