A. milometer B. Children's Day C. evaluation D. remember A. physics B. all year round C. harvest D. watermelon A. grain B. atmosphere C. warm D. selflessly A. Beijing Opera B. play jokes on C. round-up D. versus A. report B. flag C. upwards D. weave A. sun B. fire C. radio astronomer D. debt A. gaily B. bright C. clarify D. biochemistry A. strongly B. overcome C. fickleness D. pleasantly A. be angry with B. myth C. expectancy D. ourselves A. band B. windy C. sidewalk D. birdwatching