Can you swim or play chess? _______ .
—Hi,Sam.Your mother’s busy these days,________?—Yes,she is.
—He didn’t go to the lecture this morning.did he?—________,though he was not feeling very well.
—There are always many volunteers in great events,________?—Yes.Many hands make light work!A.aren’t thereB.are thereC.aren’tthey
—Wow!You look different!You________wear glasses.—Yes,I did.But now I am wearing contact lenses(隐形眼镜).
—Could I borrow your bike?—________,but please return it by Saturday.