--The two old friends were busy with each other that they forgot the time.-- Yes. They hadn't met for over ten years, so they kept talking the whole night.
A. too; to talk
B. too; talking
C. so; to talk
D. so; talking
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It is impossible for little children to do much work in a short time.
A. so; so; such
B. such; so; such
C. so; such; such
D. such; such; so
Li Na is famous all the tennis fans in China know her.
A. too; to
B. enough; to
C. as; as
D. so; that
-- Has the meeting begun yet?-- Not yet. We have to wait everyone is here.
A. and
B. until
C. or
D. but
Helen didn't know anything about it her father told her.
A. If
B. because
C. after
D. until
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