单项选择题

More study are needed to learn ______.

A．Vitamin E's side effects
B．who will gain the greatest advantages by taking Vitamin E
C．Vitamin E's other benefits
D．how Vitamin E cuts risks of heart attack

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热门试题

单项选择题

The best title for the passage would be ______.

A．The Importance of Old Friends
B．The Importance of Having Friends
C．The Importance of New Friends
D．The Importance of Getting Along Well with Friends

单项选择题

The phrase make up in paragraph 2 most probably means ______.

A．invent
B．put together
C．end a quarrel
D．complete