单项选择.1、（ ）is this ruler?（ ）know?A、Whose;Who's B、Who's;Who C、

单项选择.1、（ ）is this ruler?（ ）know?A、Whose;Who's B、Who's;Who C、Whose;Who D、Who;Whose
2、Your skirt is very nice.（ ）.
A、No,not nice B、I like it
C、Thanks D、Yes,it's very nice
3、Which one is NOT ringht?（ ）
A、Five plus six is eleven.
B、Seven and six are thirteen.
C、Nine and eight makes seventeen.
D、Twelve minus five is seven.
4、Please（ ）in the library.
A、make noise B、don't talk loudly
C、not make noise D、not talk loudly
5、We don't go to school （ ）July and August.
A、on B、from
C、at D、in