Cover of Focus 4 - Workbook

Answer — Exercise 1

Self-check 8·Focus 4 - Workbook

Câu hỏi

Read the extract from an email of complaint and choose the correct options.

Câu trả lời

  1. contaminant
  2. acid
  3. sewage
  4. species
  5. current
Exercise 2 →

More exercises in Self-check 8

Ex. 2
Ex. 3
Ex. 4
Ex. 5
Ex. 6