Find the mistake and correct it. Complete the sentence

23. We (A) join the project Plant a Tree (B)in 2019 to make (C) our area green. (Find the mistake and correct it)
24. (A)Children should often (B) washing their (C) hands. (Find the mistake and correct
it).
25. (A) Gardening belongs of the group of (C) doing things. (Find the mistake and correct it)
26. 1/join/recycling project because want help protect the environment. (Complete the sentence)
27. We learn teamwork skills when join some clean-up activity last summer. (Complete the sentence)
28. She (A) doesn't (B joins any volunteer activities it because she is bus. Find the mistake and correct it)
29. 1(A) go to the SOS (B)Children's Village to (tutor the children there last weekend. (Find the mistake and
correct it)
30. Minh avoids sweetened food. He avoids soft drinks. (Write a simple sentence from the two given sentence
=> Minh avoid
V. Read the passage and answer the questions