This is _____ pen and ________ is in the pencil-case.
There are so many kinds of radios in the shop. I can’t decide .
He feels like the Internet day and night. Tell him not to do it again.
The little boy is sleeping. You make noise here.
He about three thousand words in the past three years.A. has learned B learned C. was learning D. had learned
—Can you tell me the difference American English and British English?—It’s a pleasure.