1) My father is _____ doctor. a) a b) an c) the 2) _____ Sun keeps _____ Earth warm. a) A - the b) An - the c) The - the 3) _____ dolphin is _____ intelligent animal. a) A - an b) An - a c) The - the 4) I have _____ orange shirt too. a) a b) an c) the 5) My brother likes _____ blue pen, not _____ red one. a) the - a b) a - the c) the - the d) a - a 6) If it (be) _____ sunny next week, we (go) _____ on a picnic. a) is - will go b) will be - go 7) If we (recycle) ____ more, we (help) ____ the Earth. a) recycle - will help b) will recycle - help 8) We (save) _____ a lot of trees if we (not waste) _____ so much paper. a) will save - don't waste b) save - won't waste 9) More people (have) ____ fresh water if we (use) _____ less water. a) will have - use b) have - will use 10) If the river (not be) _____ dirty, there (be) _____ more fish. a) isn't - will be b) won't be - are

Teens 6 Unit 11

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