1 His car hasn't been cleaned since last week.
2 Was your homework being done by you at 8.00 yesterday?
3 The teacher is explaining the lesson.
4 The boy's parents has taken him to the zoo for three times.
5 Mr Hung teaches Geography.
6 Tom asked the girl when she had had this picture taken. ( have somthing + Vpp )
7 Tom suggested going somewhere for a cup of coffee after class. ( suggest + Ving )
8 John advised Mary to wear her hair a little longer. ( advise someone + to V/ not to V )
9 The landlady offered the guest another cup of tea.
10 My sister suggested going to see Aunt Mary on sunday.
11. She asked me if I had seen a flying saucer.
12 James asked me to type that letter for her.