1) If babies are hungry, a) they are crying. b) they cry. c) they cried. 2) If you mix hydrogen and oxygen, a) you get water. b) you got water. c) you're getting water. 3) If students are late for class, a) Mr Marks gets angry. b) Mr Marks get anty. c) Mr Marks got angry. 4) If plants don't get enough water, a) it dies. b) they died. c) they die. 5) If we don't drink, a) we've got thirsty. b) got thirsty. c) we get thirsty. 

SM - unit 4 - zero conditional

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