Iftheskyfelldown,what__?A.didyouthinkwouldhappenB.doyouthinkwouldhappen.
Iftheskyfelldown,what__?
A.didyouthinkwouldhappenB.doyouthinkwouldhappen.
C.doyouthinkwillhappenD.doyouthinkwillhavehappened.
为什么选B,would为什么不能用will,分析每个选项,