A. has changed ; well B. changed ; good C. has changed ; better D. changed ; better
A. learned B. was learning C. had learned D. learnt
A. had, a few B. has, several C. had, a lot of D. has, a great deal of
A. are locked B. covers C. Did somebody clean D. was sent, arrived E. are employed
A. didn't receive B. haven't got C. didn't have D. haven't heard
A. where I had been B. where I had gone C. where had I been D. where had I gone
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