1) We use "should" when: a) We want to give an advice or suggestions. b) We want to give and order or obligation. c) We want to make a question to someone else in future simple. 2) We use "must" when: a) We want to express denial in present simple. b) We want to give and advice. c) We want to express and obligation to someone else. 3) "My mom told me _____________ recycle all the plastic bottles I have in my room" a) Must b) Shouldn't c) Have to 4) "You _________ use the seatbelts when driving" a) Have to b) Must c) Should 5) "We _____________ use aerosols, it destroys the ozone layer." a) Mustn't b) Shouldn't c) Have to 6) "The teacher said that we _________________ study for every exam." a) Mustn't b) Must c) Should 7) "They _____________ use plastic bags." a) Must b) Have to c) Shouldn't 8) We use zero conditional to: a) Talk about general truths. b) Talk about impossible things. c) Tal about possible scenarios that may happen in the future. 9) We use first conditional to: a) Refer to impossible situations. b) To talk about a result in the present simple. c) Talk about possible scenarios that may be a consequence in the future. 10) If you freeze water, it turns to ice. a) Zero conditional b) First conditional 11) You burn yourself if you put your hand in fire. a) First conditional b) Zero conditional 12) If I study hard enough, I will pass the exam.  a) Zero conditional b) Mixed conditional c) First conditional 13) You will get sick if you keep eating candies. a) Zero conditional b) First conditional c) Third conditional 14) What tenses do we use in zero conditional? a) Only present simple. b) Present simple and past simple. c) Present simple and Future simple.  15) What tenses do we use in first conditional? a) Present simple and past simple. b) Present simple and Future simple c) Only present simple. 16) We use phrasal verbs to: a) Express an action or mood. b) Express concern. c) Express obligation. 17) Identify the phrasal verb: "You should shut up when she's talking." a) Should b) Talking c) Shut up 18) Identify the phrasal verb: "I need to call him back before midnight." a) Before b) Call back c) Need to

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