Where are you going this month？
We_________ go to Xiamen，but we're not sure．（ ）
| A． |
needn't |
B． |
must |
C． |
might |
D． |
mustn't |
Benjamin has learned that it is not polite to make _____ fun of others．（ ）
| A． |
a |
B． |
an |
C． |
the |
D． |
/ |
According to the rule，used batteries _______ be dropped in the red bin for harmful wastes．（ ）
| A． |
must |
B． |
need |
C． |
can |
D． |
may |
Worries in life _____ if you speak out to your close friend．（ ）
| A． |
will reduce |
B． |
were reducing |
| C． |
will be reduced |
D． |
were reduced |
Frank held his breath ______ the water to search for his ring in the swimming pool．（ ）
| A． |
at |
B． |
by |
C． |
over |
D． |
under |
By the end of last month，Jane _____ enough money for the poor sick boy．（ ）
| A． |
raised |
B． |
would raise |
| C． |
had raised |
D． |
has raised |