1) Snakes ______ if they are scared a) biting b) bites c) bite d) will bite 2) Soap dissolves if you ________ it in water. a) leave b) leaves c) will leave d) left 3) If he rings the bell, the receptionist ________ . a) come b) came c) would come d) comes 4) If you _____ water to 100°C, it _____. a) heat / boils b) heats / boils c) heat / will boil d) will heat / boils 5) If he ____ weak in English, the teacher _____ him special attention. a) is / gives b) be / gives c) was / will give d) has been / gives 6) If it ____ extremely cold during the night, there ___ ice on cars. a) was / is b) is / is c) will be / is d) has been / is 7) Milk ________ off if you don’t keep it in a cool place. a) go b) gone c) goes d) went 8) Your teeth look white and healthy if you __________ them regularly . a) would brush  b) brushed c) have brushed d) brush 9) If my husband ____ a cold, I usually ____ it. a) is having / catch b) had / caught c) has / catch d) have / catch 10) When I _____a lot of homework, I ______ late. a) had / stayed up b) have / stay up c) have / stayed up d) will have / stay up

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