单项选择题

A．Heavy, green water which changes salt dust to high grade petroleum.
B．Heavy, green dust which changes salt water to high grade petroleum.
C．Light, grey water which changes salt dust to high grade petroleum.
D．Light, grey dust which changes salt dust to high grade petroleum.
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单项选择题
A．She found that the line was always busy.B．She didn’t bring any motley with her.C．She couldn’t read the phone books.D．She didn’t know her friend’s phone number.
A．She found that the line was always busy.
B．She didn’t bring any motley with her.
C．She couldn’t read the phone books.
D．She didn’t know her friend’s phone number.
单项选择题
A．A cyclist being interviewed.B．A sports reporter far a local news show.C．Last year’s tour winner.D．President of the Ottawa Bicycle Club.
A．A cyclist being interviewed.
B．A sports reporter far a local news show.
C．Last year’s tour winner.
D．President of the Ottawa Bicycle Club.
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