Life is like a mirror． you smile at it，it will smile back．（ ）
A．UnlessB．WhenC．UntilD．Though
Our English teacher wants us _______ English stories out of class．（ ）
| A． |
read |
B． |
reading |
C． |
to read |
I can't see Lucy because she is _______ the tree．（ ）
| A． |
in front of |
| B． |
behind |
| C． |
next to |
Mike lost his school ID card this morning．He is looking for _____ now．（ ）
| A． |
it |
B． |
him |
C． |
them |
I want to be ______ engineer when I grow up．（ ）
| A． |
a |
B． |
an |
C． |
the |
How long is BC in the triangle（三角形）ABC？（ ）
| A． |
4cm |
B． |
8cm |
C． |
6cm |