Helping others makes us very ．（ ）
| A． |
lonely |
B． |
proud |
C． |
lazy |
D． |
harmful |
What's your brother doing now？He _____ in the room．（ ）
| A． |
sings |
B． |
sung |
C． |
has sung |
D． |
is singing |
Who is ______，Tom or Dave？Dave．（ ）
| A． |
tall |
B． |
taller |
| C． |
tallest |
D． |
the tallest |
There are ______ cars in the street．It's so crowded．（ ）
| A． |
hundred |
B． |
hundreds |
| C． |
hundred of |
D． |
hundreds of |
Mr．Wang teaches _______ Chinese．（ ）
| A． |
us |
B． |
we |
C． |
our |
D． |
your |
Hello!Is that Peter speaking？Yes，_______．（ ）
| A． |
It's Peter |
B． |
I'm Peter |
| C． |
this is Peter |
D． |
Peter is me |