— It’s already Monday. Sam lost his MP4 last Wednesday and he hasn’t found it.— Really? Do you mean_?
#38946
A
did Sam lose his MP4 five days ago
B
Sam lost his MP4 for five days
C
it’s five days since Sam lost his MP4
D
has Sam lost his MP4 for five days
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I love teachers ________  are friendly to us.
#36580
A
who
B
what.
C
where
D
whom
---Can you let me know        yesterday?   ---Because the traffic was bad. 
#38370
A
why did you come late
B
why you came late
C
why do you come late
D
why you come late