7：40 forty minutes past seven（7点经过40分） twenty minutes to eight （8点还差20分） 3:45 forty-five minutes past three a quarter to four 5：30 half past five half to six 9:40 forty minutes past nine twenty minutes to ten 6:26 twenty-six past six four minutes to half past six 8：00 eight o' clock eight 10:20 twenty minutes past ten ten minutes to half past ten 第一种最准确,第二种有点不太确定.
