Don't make a noise! My mother ______ now.
A.will sleep B.is sleeping C.slept D.have slept
—______ is your best friend?
—Linda. I like her very much.
A.What B.Who C.Why D.Where
Tom was ill, ______ he didn't come to the English party last Friday.
A.for B.or C.so D.but
We 'll have a trip to America ______ February.
A.of B.at C.on D.in
Lucy and Ann are my classmates, and ______ often help me.
A.they B.them C.their D.theirs
There are many people on _______ sides of the street.
A.each B.either C.all D.both