问题
I must be off now "she said,and______ that she hung up the phone
A:What isrequired; not tell
B:As isrequired; shouldn’t tell
C:It isrequired; not tell
D:It requires;shouldn’t tell
B:As isrequired; shouldn’t tell
C:It isrequired; not tell
D:It requires;shouldn’t tell
正确答案是：
