Unit5课时作业(一)
Ⅰ.用所给词的适当形式填空
1．The kitchen knife has become dull, so Mother asked me to ________(sharp)it.
[答案] sharpen
2．There are many rubber trees in the ________ (botany) garden which can produce a lot of rubber every year.
[答案] botanical
3．After three days without food, the men were close to _______
(starve)．
[答案] starvation
4．These apples need another week to ________(ripe)．
[答案] ripen
5．His ability to dispose of the ________(mess) situation caused by angry people caught the attention of his superior.
[答案] messy
