______ they are twin brothers， ______ they don't look like each other．（ ）
| A． |
Although； / |
| B． |
Although； but |
| C． |
But； although |
Mr. Smith a novel last year but I don't know whether he has finished it．（ ）
| A． |
wrote |
| B． |
was writing |
| C． |
has written |
The girl is wearing a blue dress is my sister．（ ）
| A． |
whom |
B． |
which |
C． |
who |
Susan Tina are good friends．（ ）
| A． |
or |
B． |
and |
C． |
but |
It is a lovely dog， ？（ ）
| A． |
aren't they |
| B． |
doesn't it |
| C． |
isn't it |
Who is the teacher going to have a picture for the wall newspaper？
Charlie．（ ）
| A． |
draw |
B． |
to draw |
C． |
drawn |