—______ did you tell Mary about the story?
—By ______ an email.
| A．How，send | B．How，sending |
| C．What，send | D．What，sending |
When I got home，my son________music．
| A．am listening to |
| B．listened to |
| C．was listening to |
| D．was listening |
My mother________while my father________TV．
| A．cooked；was watching |
| B．was cooking；was watching |
| C．was cooked；watched |
| D．cooked；watched |
—I called you at 8:00 yesterday evening，but there was no answer．
—Oh，I’m sorry．I________dinner at my friend’s house．
| A．have |
| B．had |
| C．was having |
| D．have had |
What________from three to four yesterday afternoon？
| A．have you done |
| B．had you done |
| C．did you do |
| D．were you doing |
—I called you at 6 o’clock yesterday evening，but nobody answered．
—I’m sorry．I________my friends download the movie Kung Fu Panda Ⅱ when the telephone rang．
A．would help
B．helped
C．was helping