问题
In a sport team each player has a clear role，and there are few occasions ___________ members are confused or uncertain of their roles.
A:why
B:that
C:when
D:in which
B:that
C:when
D:in which
正确答案是：
同类题型
I _____not thank you too much for your help.
animals, ______ their size, breatheonce for every four heartbeats
______ the flight to New York will be put off is ______ I’m especially worried about
She works hard ________ she can pass the final exam.
ou phoned me, I was having a meeting; how I wish I _______ your call.