A. felt B. endless C. think highly of D. rough A. Hubble B. edge C. on the left D. make progress A. fraction B. villager C. Dane D. universe A. pitfall B. organism C. set in D. serious A. September B. explorer C. fortnight D. exhibit A. crash B. tube C. giant D. circulate A. pole B. nurse C. punctuate D. the high jump A. botany B. participate C. different from D. mend A. ten B. struggle C. per cent D. mistake A. discount B. strap C. combination D. hip hop