—Mike, ________ quiet in the library, please! That’s the rule.
—OK, I got it.
A.keep B.don’t keep C.keeping D.keeps
—I failed the test because of too many ________ mistakes.
—So you must be more careful next time!
A.homeless B.careless C.meaningless D.useless
—How old is your elder brother?
—________. You know, he was born in the last year of the 20th century.
A.Twenty-one B.Twenty-five C.Thirty-one D.Thirty-nine
Many children like ice cream because it ________ sweet and cool!
A.looks B.sounds C.smells D.tastes
—When is the Dragon Boat Festival?
—It’s ________ May in Chinese calendar.
A.on B.in C.at D.from
My father works in the zoo, ________ I can learn a lot about animals.
A.if B.but C.so D.because