I've been to Beijing (twice).对括号里的词提问.
问题描述:
I've been to Beijing (twice).对括号里的词提问.
____ ____ ____ are you been to Beijing?每空一词.
答
I've been to Beijing (twice).对括号里的词提问.
How many times have you been to Beijing?time得是复数吗?time解释为次数的时候,是可数名词解释为时间的时候是不可数名词