确实不需要 加上 the time
正确的改发应该是 we wait impatiently because when the plane is to take off has not been announced
"when the plane is to take off has not been announced" 这句话是作原因状语,解释我们等得不耐烦的原因
确实不需要 加上 the time
正确的改发应该是 we wait impatiently because when the plane is to take off has not been announced
"when the plane is to take off has not been announced" 这句话是作原因状语,解释我们等得不耐烦的原因