( ) Where ____ you from ? A. do B. are C. is
—What are they doing? —They are________a sandcastle. A.paint B.painting C.paints
Summer is________season. A.hot B.hottest C.the hottest
Birds are singing________the sky. A.in B.on C.at
The weather is________. A.snow B.snowy C.snows
—Is Lisa reading books? —Yes,________. A.she isB.she'sC.She is