Try to ________ the children’s school life so that they won’t get bored.
A.differ B.change C.describe D.vary
We’re glad to see that the villagers are increasingly ______of the importance of environmental protection.
A.sure B.concerned C.proud D.conscious
—I wonder if Doctor Watt ________ the party tonight.
—I don’t know，but I’ll let you know if he ________.
A.will attend；will come B.will attend；comes
C.attends；will come D.attends；comes
Elephants usually won’t attack a person ________ one becomes a danger to them.
A.until B.although C.unless D.when
—￥55, and that’s my last offer.
—OK.That’s a ________.
A.trade B.deal C.cost D.price
Our headmaster worked so hard day and night that _______ he made himself ill.
A.definitely B.quickly C.eventually D.probably
