1) If it ...., we get water a) Rain b) Rained c) Rains d) has rain 2) If a shark .... a tooth, it grows a new one a) had loosed b) has loosed c) lose d) was loosed e) loses f) have loose 3) When you .... hard, you will success a) study b) studies c) has studied d) don't study e) works 4) If you .... early, you will miss the bus a) wake up b) don't wake up c) wakes up d) awake up e) sleep

The Zero Conditional

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