1．The cruel boss had his employees ________ (work) all day long.
答案：working
2．I had great difficulty ________ (find) the suitable food on the menu in that restaurant.
答案：finding
3．They tried to convince him ________ (support) them.
答案：to support
4．We were very excited at the sight of two fivestar red flags ________ (rise) in the stadium.
答案：rising
5．Blamed for breaking my promise, I felt my face ________ (grow) hot.
答案：growing
6．Hunger and cold made him ________ (depress) and lose confidence.
答案：depressed
7．The next thing he saw was smoke ________ (rise) from behind the house.
答案：rising
