The new railway ___in our hometown in 2013．（ ）
A．was builtB．is builtC．has built
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 |
﹣Where is Zhang Hua？
﹣He ______ Beijing to see his parents and he'll be back tomorrow．（ ）
| A． |
has gone to |
| B． |
has been in |
| C． |
has been to |
I like music ______ I can dance to．（ ）
| A． |
that |
B． |
what |
C． |
who |
I wonder if it ______ rain tomorrow， if it ______ rain I'll go hiking with my friends．（ ）
| A． |
will； isn't |
| B． |
doesn't； won't |
| C． |
will； doesn't |