A、 go
B、 to go
C、 goes
D、 went
答案:B
A、 go
B、 to go
C、 goes
D、 went
答案:B
A. a
B. an
C. the
D. /
A. How
B. When
C. Before
D. Why
A. not to watch
B. to not watch
C. not watching
D. doesn't watch
A. Don't
B. Doesn't
C. Aren't
D. Can't
A. open
B. close
C. opened
D. closed
A. which
B. when
C. whether
D. since
A. {x|1<x<5}
B. {x|x>5或x<1}
C. {x|1≤x≤5}
D. {x|x≥5或x<1}
A. -1
B. 0
C. 1
D. 不存在
A. is
B. are
C. were
D. /
A. 1.5
B. 2
C. 2.5
D. 3