Is the man over there Adam？
It ____ be him． He has gone to Hong Kong on vacation． （ ）
A．mustB．can'tC．mustn't
Must I do the project on my own？
No， you____．You can work with your classmates．（ ）
| A． |
needn't |
B． |
can't |
C． |
shouldn't |
D． |
mustn't |
Frank is an independent boy． His parents are proud ____ him．（ ）
| A． |
on |
B． |
to |
C． |
in |
D． |
of |
The bridge between the two islands is _______ one in Shanghai．（ ）
| A． |
long |
B． |
longer |
| C． |
longest |
D． |
the longest |
Catherine has two cousins． One is quiet， and______is noisy．（ ）
| A． |
another |
B． |
the other |
C． |
other |
D． |
others |
Peter spent half a day fishing by the river，______he didn't catch anything．（ ）
| A． |
so |
B． |
or |
C． |
for |
D． |
but |