---What delicious cakes! ---They would taste _____with butter.
A．good B．better C．bad D．worse
Let’s go climbing if it _________ tomorrow.
A．won’t snow B．doesn’t snow C．isn’t snow D．can’t snow
I saw him _______basketball with Jack an hour ago.
A．plays B．to play C．played D．play
The man in the office ____be Mr. Black because he phoned me from London just now.
A．mustn’t B．may not C．can’t D．needn’t
My father returned at 10 o’clock ______ of June 15.
A．in the night B．by the night C．on the night D．at night
Who taught ______ math last year?
A．they B．their C．them D．theirs
