我们讲话的声音通过话简转变为电信号之后是___（模拟、数字）信号。
在数字电路中，基本的工作信号是___（数字/模拟）信号。
There _________lots of people at the restaurant when I got there.
A. is
B. was
C. are
D. werre
--- Can she go out on school nights?--- No, she _________. And I can't,.
A. doesn't; too
B. doesn't; either
C. can't; too
D. can't; either
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