—I didn't go to see the doctor yesterday.
—But you ________.
A．ought B．ought to
C．ought to be D．ought to have
I don't mind her criticizing me，but ________ is how she does it that I object to.
A．it B．that C．this D．which
It was last night ________ I saw the comet.
A．the time B．when C．that D．which
—Did Linda see the traffic accident?
—No，no sooner ________ than it happened.
A．had she gone B．she had gone
C．has she gone D．she has gone
(2013·四川，6)________you said at the meeting describes a bright future for the company.
A．When B．How C．What D．That
(2013·安徽，21)From space, the earth looks blue.This is ________about seventyone percent of its surface is covered by water.
A．why B．how C．because D．whether
