For such an important program, nobody can you as the engineering director.
A. replace
B. replaces
C. replacing
D. replaced
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The train is running at a speed of sixty miles .
A. an hour
B. hour
C. the hour
D. a hour
He can play differnet kinds of music instruments, and he is good at playing .
A. the flute
B. a flute
C. flutes
D. that flute
The investigators found that more should be done for in India.
A. those poor
B. a poor
C. poor
D. the poor
You look in high spirit. You must have wonderful time during your holiday.
A. an
B. a
C. the
D. some
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