A. forty B. run out of C. illiterate D. dull A. cheerful B. cat C. on holiday D. so long as A. pretty B. Russia C. image D. diversity A. cement B. quit C. anyhow D. environmentalist A. slightly B. energe C. league D. methane A. driftnet B. lung C. air D. documentary A. digest B. conventional C. wood D. keep to A. absolutely B. pause C. sleeve D. cut off A. chart B. supersonic C. illegal D. hope A. constant B. volcanology C. attain D. another