Amy was ...... an email at 10 o'clock last night .
A) wrote B) writing C) writes

"What ...... she do?"
"She's a musician."
A)does B)is C)was

My mum never ..... me go to bed late.
A)is letting B)let C)lets

Where is the CD ..... Mary gave me?
A)that B)which C)who

I ...... all day yesterday .
A)am working B)work C)was working