i remember( )I was doing when Yang LIwei went into space on October 15,2003A.thatB.whatC.whereD.who

i remember( )I was doing when Yang LIwei went into space on October 15,2003A.thatB.whatC.whereD.who
i remember( )I was doing when Yang LIwei went into space on October 15,2003
A.that
B.what
C.where
D.who

i remember( )I was doing when Yang LIwei went into space on October 15,2003A.thatB.whatC.whereD.who
B
因为宾语从句was doing 这个及物动词缺宾语,这时我们就只有选择连接代词了.A,that 无意义,不可以作宾语,C,where 是连接副词,也不可以做宾语.而D who 虽可以作宾语,但它是指“人” 的,显然不可以作was doing （在做.） 的宾语.