He ___________ the volunteer group last year and ___________ many activities since then. A. took part in…joined B. joined…took part in C. joined…has taken part in
—Sorry, Doctor Smith isn’t here right now. —May I ____ a message on his desk?
—Would you mind turning down the music? —_____________.
Daming didn’t take a photo in the museum. I didn’t, _______
If the magazine is online, paper _______ .
Our classroom _______ by us every day!