选择合适词或短语,并用正确形式填空!
【feed on】 【hunt for】 【in danger of】 【set up】 【have an effect on】 【as a result】 【only if】 【keep an eye on】 【stand for】 【put down】
1._____you study hard can you pass the exam.
2.In flat open country,there is plenty of grass for the cattle to _____.
3.According to the scientific research,sleeping pills _____ the human brain.
4.This organization was originally _____ in 1968.
5.Mary offered to _____ the baby while her mother was out.
6.I have _____ my wath everywhere but I can`t find it.
7.He likes boasting _____ ,none of his friends believes what he says.
8.He is _____ losing his job if he goes on like this.
9.The letters PLA _____ the people Liberation Army.
10._____that knife before you hurt somebody.