Answer the following questions.
Please list four frequently-used ways of word-formation with examples.
You’d better not drink if you want to keep（ ）.
1. Elementary school authorities should reduce the pupils' homework load to ensure that they have a （）childhood.
Fill in the blanks with one of the items given below:
One glaring disadvantage ofapplication is that, while destroying harmful pests, they also wipe out many usefulorganisms, which keep the growth of pest population in check.
Define the following terms with examples.
Back-formation
Blending
Define the following terms with examples on the ANSWER SHEET.acronym
Which of the following does not belong to Acronym?（）
Which of the following belongs to clipping?（）
application is that, while destroying harmful pests, they also wipe out many useful