Two and three is ________.

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What's one and three? ________.

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If(如果)there are four birds in the tree,and I kill(打死)one．How many is left(剩下)？

1. A.
   One．
2. B.
   Three．
3. C.
   Two．
4. D.
   Zero．

I'd like          bowls of noodles．One is for myself and the other two are for my parents．

A．one                     B．two                     C．three                      D．four