Tu Youyou is famous ____ her medical research and won the Nobel Prize this year.
| A．of | B．for | C．as | D．to |
---- What are you _____, Tom?
----- I’m ________ TV programs.
| A．doing, watches | B．doing, watching | C． do, watching | D．do, watch |
Kate and I _____ doing ______ homework now.
| A．am, their | B．are, their | C．is, our | D．are, our |
Listen! Someone _____ songs.
| A．are singing | B．singing | C．sing | D．is singing |
Bob is ________ at the map to find where Beihai Park is.
| A．looking | B．looks | C．looked | D．look |
I think your mother is_____you at the school gate at the moment.
| A．waiting | B．waiting for | C．waiting for | D．is waiting |