Question

I _____ on a sofa because my grandparents have come for the weekend.

　　A. slept 　　　B. was sleeping　　　 C. have slept 　　　D. am sleeping

Answer 1

D

解析:

从题干中my grandparents have come for the weekend判断主句应用现在的时态，而且我只是因为祖父母来度周末临时睡沙发，所以选D，现在进行时表示临时性的动作。