Dear，please tell me_________．
Because I'll have a long vocation without homework．（ ）
| A． |
why are you so happy |
| B． |
why you are so happy |
| C． |
why were you so happy |
Protecting ourselves is one of ___________________ things we must do.
| A． |
important |
B． |
more important |
| C． |
most important |
D． |
the most important |
A lot of trees ______________in our city in spring every year.
| A． |
are planted |
B． |
were planted |
| C． |
plant |
D． |
planted |
We should take the rest of the food home______we can't finish what we order.
| A． |
if |
B． |
so |
C． |
unless |
D． |
until |
The villagers plan ______________a new bridge over the river.
| A． |
build |
B． |
building |
C． |
to build |
D． |
built |
Ann has got a letter from her best friend.It makes ___________ quite excited.
| A． |
she |
B． |
her |
C． |
hers |
D． |
herself |