— Have you got any carrots?
— No, I _____. [ ]
A. have
B. haven't
C. don't
D. am not
答案:B
--- Would you like to go hiking with us for summer vacation?
--- Yes, I’d love to. _____ my parents have decided to take me to visit my grandmother.
A.Because
B.But
C.As
D.And
一个物体在眼前突然出现,眼睛就会情不自禁地眨一下,这种反应叫做( )
A.冲动
B.反射
C.兴奋
D.运动