23．I’m tired．Let’s stop _________ a rest．

    A．have             B．having                 C has                           D．to have

    22．In this class，_________of the students are boys．

    A．three fifths     B．three fifth           C．third fifths             D．third five

    21．―Would you like a bag of rice?

        ―Yes，I have _______ rice at home．

    A．some           B．1ittle              C．many                     D．a few

    20．When will the letter can be read?

    A．When the milk looks brown               B．When the paper gets cool．

    C．When the milk is dry．

    19．Can the paper get too hot?

    A．Yes．it is．         B．Yes，it can． C．No，it can’t．

    18．How Call We read the letter again?

    A．Hold the paper over a candle．           B．Make the paper burn．

    C．Get it dry.

    17．What do you write your letter with?

    A．Ink．                  B．Pencil．       C．Milk．

    16．What colour must the paper be?

    A．Black．               B．White．       C．Red．

    14．What do they need to protect them from the sun?

    A．Some juice．       B．Some fruit．        C．Some caps．