1 . When the door of happiness closes, another opens, but often we look so long at the closed door _____ we don’t see the one which has been opened for us.

A．which	B．that
C．as	D．when

2 . Linda took my arm and hurried me upstairs, leaving others waiting downstairs, ________ we wouldn’t be overheard.

A．as if	B．so that
C．even if	D．in that