I. Choose the word whose underlined part is pronounced differently from the others. 1. a. laugh b. cough c. bought d. tough 2. a. game b. gym c. girl d. bag 3. a. calorie b. labour c. community d. volunteer 4. a. environmental b. benefit c. service d. sick 5. a. danced b. helped c. watched d. enjoyed II. There is one mistake in each sentence. Underline and correct the mistake. 1. She has went to visit Susan. She’ll be back tomorrow. 2. I didn’t done any volunteer work lately. 3. Matha is a great cooker and she often cooks dinner for homeless people. 4. Kim hasn’t seen the film already, so don’t tell her how it ends. 5. She has donated a lot of money for local charities. 6. Before donate a book, make sure that it is in good condition. 7. We should encourage people recycle glass, cans, plastic and paper. 8. Did you lived in Vancouver when you were young? III. Put the verbs in brackets into the correct form. 1. We _____________ (stay) at home if it rains. 2. She will call you if she _____________ (have) time. 3. If it _____________ (not rain) tomorrow, we will go for a picnic. 4. If everyone ____________ (recycle) paper, metal and glass, we ____________ (not produce) so much rubbish. 5. If you _____________ (not water) plants, they _____________ (die). 6. Our class __________ (organise) a writing contest. We have to write about theenvironment. 7. Give old clothes to charity instead of ____________ (throw) them away. 8. Encouraging people ___________ (use) public transport is a great way to reduce traffic jams.