1．I have a set of________ ．

1．_________ a basketball?

23．It is_______ basketball．

1． The shop __________open ten hours a day．

设有如下关系表： RST ______ ______ ______ A B C A B C A B C 1 1 2 3 1 3 1 1 2 2 2 3 2 2 3 3 1 3则下列操作中正确的是______ 。

Many a boy _____ playing basketball.

There ______ a basketball match between Class One and Class Three this afternoon.

-Look! _______Smiths are playing basketball.
-Let’s _____them.

— Do you want to watch a football match between China and Japan on CCTV-5 this afternoon? — _______________. I’d rather play basketball.

(单项选择)Our basketball team __________ to win the championship game.

—Do you know ______ boy over there?—Yes, he likes playing ______ basketball very much.

设P(A)=1/2,P(B)=1/3,且A包含B,则P(A-B )为________。