________ is known to us all is that the old worker，for ________ life was hard in the past，still works hard in his seventies.
A．As；whom B．What；whose
C．It；whose D．What；whom
—How did you deal with the order?
—I handed it to ________ I think is in charge of sales.
A．who B．when
C．whoever D．whomever
________ the football match will be played depends on the weather.
A．If B．Whether
C．That D．Where
—We were surprised to hear that the reason ________ she gave for her absence was ________ her mother was ill.
—Yes.We saw her mother was at the supermarket that morning.
A．why；that B．which；that
C．that；because D．why；because
Before the sales start，I make a list of ________ my kids will need for the coming season.
A．why B．what C．how D．which
—The two people speak different languages and can not communicate with each other well.
—Oh，I see.That’s ________ misunderstanding occurs.
A．when B．what C．that D．why
