Ex1.

1. Nick washes his hands a lot so he doesn't have flu.

2. David eats lots of junk food and he doesn't do exercise.

3. The doctor told Elena she should sleep more or she should try to relax more.

4. My sister plays computer games but she does exercise too.

5. Eating carrors will help you see objects more clearly at night.

6. Going outside with wet hair will give you a cold or flu.

7. Eating fresh fish will make you smarter.

Ex2.

Grow -> water -> helps -> takes -> read -> will harvest -> will give -> will take.

Bài 1: Write complete sentences, using the words or phrases given in their correct forms.

1 Nick/wash /hands a lot /he / not/ have the flu.

-->Nick washes his hand a lot so he doesn't have the flu.

2 David/ eat/ lots of junk food / he/ not do exercise.

-->David eats lots of junk food but he doesn't do exercise.

3 doctor /told Elena that she/ sleep more/ she/ try to relax more.

-->The doctor told Elena that she must sleep more and she must try to relax more.

4 My sister / play/ computer games / she does exercise too .

-->My sister likes playing computer games,  she also does exercise too. 

5 Eating/ carrot help/ you see objects /more clearly/ at night.

-->Eating carrot help you see objects more clearly at night

6 Going outside / wet hair/ give/ you a cold or flu.

-->Going outside with the wet hair gives you a cold or flu.

7 Eating/fresh fish/make/ you/ smarter.

-->Eating fresh fish makes you smarter.

Bài 2: Give the correct form of the verbs in the brackets.

  It is wonderful to have a hobby to do for pleasure in your free time. My favorite hobby is gardening. I love watching flowers and eating vegetables, so I (1 . grow) grow a lot of plants in my garden. I usually (2 water) water them in the early morning. Sometimes my mother also(3 help) helps me care for them and my father (4 take)takes me to the market to buy seeds. I often (5 read)  read books tounderstand more about gardening. This weekend I (5 harvest ) harvest carrots and cabbages. Do you know how eager I am? (7 give) Give some of them to my grandparents. Also, I    (8 take ) am taking photos of them and post on Facebook. Let is go wait and see!