---______ can we warn people not to swim here?---By putting up signs.A. How B. Why C. Where
—Your pen is very nice.—________________.
—_________!Whereismyjacket? —_________,Idon’tknow.
There ______ a pen and a map on the desk.
This ________ my grandfather and those are my ________.
E-mail Tom Mary@163.com , please.