Many teenagers say that _____ they have a lot of friends, they really have no best friend.
A.when | B.while | C.if | D.because |
His younger sister may already be in high school now, in ________ case this picture book is too childish for her.
A.that | B.which |
C.whose | D.what |
It is by no means clear ________ the president can do something to end the strike.
A.whether | B.which |
C.that | D.what |
Good shoes, clothes and a backpack are the basic ________ you need for your hiking.
A.equipment | B.instruments |
C.tools | D.models |
The Australian boy has a good ________ of Chinese and can express himself freely in it.
A.power | B.command |
C.demand | D.usage |
—How can I use the equipment?
—Well, just refer to the ________.
A.directions | B.explanations |
C.expressions | D.introductions |