He devoted all the time _____ his research .
| A．to do | B．doing | C．to doing | D．did |
---What do you think of the decision made at the meeting yesterday?
---I think it could lead to seriousfor the future of the factory.
| A．tendency | B．consequences |
| C．circumstances | D．existence |
She isto household dust, so she often wears a hat when cleaning the house.
| A．allergic | B．sensible |
| C．impressive | D．beneficial |
Being a parent is not always easy, and being the parent of a child with special needs often carries with___extra stress.
| A．it | B．them | C．one | D．him |
Jack is a great talker. It’s high time that hesomething instead of just talking.
| A．will do | B．has done | C．did | D．do |
With more forests destroyed, huge quantities of good eartheach year.
| A．is washing away | B．is being washed away |
| C．are washing away | D．are being washed away |