Question

【题目】--- ___ will you stay in Beijing? --- About tow weeks.
A.When
B.How long
C.how many days

Answer 1

【答案】B
【解析】句意：---你要在北京呆多久？---大约两个周。when何时；how long多久；how many days多少天。根据答语可知问时长，所以答案是B。