1 . 选词填空

multiple     tend             focus       frustrating        types phase        encounter       grab       appetite            facility

1. He died of____________ injuries.
2. The research effort has ___________ on tracing the effects of growing levels of five compounds.
3. What recreational ___________ are now available?
4. This autumn, 6000 residents will participate in the first ___________ of the project.
5. The current situation is very___________ for us.
6. Did you ___________ anyone in the building?
7. A problem for manufacturers is that lighter cars ___________to be noisy.
8. I managed to ___________ her hand.
9. Someone’s ________ for something is their strong desire for it.
10. There are various___________ of the disease.