ai giúp mình với ạ mình cảm ơn 37. It was so hot that I didn’t sleep _______ till three o’clock. A. well B. soundly C. excellent D. safe 38. Wake _______ ! It’s eight o’clock. A. over B. out C. up D. at 39. He’s always full _______ energy. A. of B. on C. off D. in 40. Three quarters of the day……………in idleness. A. was spent B. were spent C. was going D. were taking 41. When the police investigate a crime, they……evidence such as fingerprints, hair, or clothing. A. look after B. look for C. look up for D. look into 42. Put all the toys away……………someone slips and falls on them. A. provided that B. unless C. in case D. so long as