1) If it ... (rain), the ground ...(to be) wet. a) rains b) rain c) is d) are 2) The river ... (freeze) if it ... (to be) cold. a) freeze b) freezes c) is d) does 3) If you ... (heat) water, it ... (boil). a) heat b) heats c) boil d) boils 4) If you ... (touch) a hot kettle, you ... (burn) your hand. a) touch b) touches c) burn d) burns 5) If you ... (mix) red and yellow, you ... (get) orange a) mixes b) mix c) gets d) get 6) If he ... ( not water) this plant, it ... (die). a) don`t water b) doesn`t water c) dies d) die 7) Ice ... (melt) if you ... (hold) it in your hand. a) melt b) melts c) hold d) holds 8) The ground ... (get) wet if it ...(rain). a) gets b) get c) rain d) rains 9) Ice-cream ... (melt) if you ... (heat) it. a) melt b) melts c) heat d) heats 10) If you ... (mix) blue and yellow, you ... (get) green.  a) mix b) mixes c) gets d) get 11) If Sue ... (not wear) a cap, he ... (get) sunstroke. a) don`t wear b) doesn`t wear c) gets d) get

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