Question

_______ the sun rising slowly in the east, the scene is a perfect dream.

A．Seeing	B．To be seeing
C．When you see	D．Having seen

Answer 1

C

从句主语为the scene ，主句为you ，只能写成主从句。其他选项不合适
“当你看到太阳从东方慢慢升起时，这种景色确实太美了 ”