Hannah came _______ a fantastic idea for preserving our heritage. A. down with B. up to C. over up D. up with

A strong greenhouse effect will warm the ocean and partially melt glaciers, increasing ____. A. sea level B. temperature C. sea water D. pollution

We _______ touch since we _______ school three years ago. A. lost / have left B. have lost / leave C. have lost / left D. were losing / had left

Quiet, please! The baby _______ . A. sleeps B. lept C. has slept D. is sleeping

Choose the word that differs from the other three in the position of primary stress. A. campaign B. balance C. methane D. carbon

OPPOSITE in meaning: We should grow more trees so that they can ABSORB more carbon dioxide from the atmosphere. A. emit B. affect C. consume D. improve

Choose the word whose underlined part differs from the other three in pronunciation. A. admired B. looked C. missed D. hoped

Replace all the light bulbs in your home with ____ bulbs. A. energy-saving B. energy-save C. energy-saves D. energy-saved

Choose the word that differs from the other three in the position of primary stress. A. pollution. survival C. extinction D. habitat

OPPOSITE in meaning: They have made MAXIMUM use of the natural resources available. A. high B. minimum C. average D. top

CLOSEST in meaning: Secondly, the wildlife has to compete with the surrounding agriculture for the HABITAT. A. place of cooking B. place of traveling C. place of living D. place of working

Do you mind _______ the television on now? A. turn B. turning C. to turn D. to turning

Choose the word whose underlined part differs from the other three in pronunciation. A. complained B. decayed C. existed D. controlled