A、 though
B、 before
C、 because
D、 since
答案:B
A、 though
B、 before
C、 because
D、 since
答案:B
A. 2
B. 3
C. 4
D. 1
A. moves
B. moved
C. is moved
D. was moved
A. save
B. saving
C. saved
D. to save
A. quite
B. too
C. very
D. so
A. natural
B. dangerous
C. soft
D. cool
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. not to be late
B. not being late
C. to be late
D. being late
A. oldest;older
B. the oldest;older
C. the oldest;elder
D. the older;elder
A. π
B. 2π
C. π/2
D. π/4
A. well
B. better
C. best
D. great