Because he is living alone, his mother seemed to have a lot________.
A.to worry about B.to be worry about C.to worry D.to be worried
________wild animals are disappearing because of the ________of their living areas.
A.The number of; lost B.The number of; losing C.A number of; lose D.A number of; loss
Some of his friends are interested in science, but none of them can tell _______.
A.when UFOs appeared next time B.that horses know the way or not
C.where was this kind of plant found D.how elephants communicate
There’s no ticker left for Lang Lang’s piano concert . you your sister can go to it .
A.Both ; and B.Not only ; but also
C.Either ; or D.Neither ; nor
—Do you know________the meeting will last?
—________the agreement is reached.
A.how long; Not until B.when; Not until C.how long; Until D.when; Until
He offered________valuable suggestions ________ few people disagreed.
A.such, that B.very, that C.so, that D.too, that
