问题

I don’t know the reason _________ he’s come so late.
A:/
B:for which
C:why
D:all the above
B:for which
C:why
D:all the above
正确答案是:
同类题型
Tom, try ________ much noise while you are eating noodles here in Japan. It’s good manners.
The visitors looked quite ________ by the beautiful view at the top of Mount Tai.
Mountain climbing must be very tiring, ________,you might feel sick with the air getting thinner
Will the mbecause of thebad weather—No. Rain or shine,the match will be held as.