〔52〕省略

〔52〕 省略
(1)He was singing while he was driving.　
(2)He was singing while driving.
(3)She was smiling while she was talking.
(4)She was smiling while talking.
(5)They were shouting when they were playing.
(6)They were shouting when playing.
(7)Tom was tired after he was working all day.
(8)Tom was tired after working all day.
(9)She was nervous before she was giving the speech.
(10)She was nervous before giving the speech.
(11)My brother was laughing as he was walking.
(12)My brother was laughing as walking.
(13)What an interesting story !
(14)What a wonderful day!
(15)How amazing !
(16)How amazing this experience is !
(17)How wonderful !
(18)How wonderful the news is!
(19)Nice to see you again.
(20) Good to know.
(21)She can speak French better than English.
(22)She can speak French better than she can speak English.
(23)I visit my hometown more often now than in the past.
(24)I visit my hometown more often now than I did in the past.
(25)He studies harder now than last year.
(26)He studies harder now than he did last year.
(27)Please call me when you get home though I asked you to.
(28)I was expecting you to reply to my message though I asked you to.
(29)You should have helped her as I asked you to.
(30)Please inform us of any changes, if any.
(31)Please inform us of any changes, if there are any changes.
(32)Return any unused items, if any, to the store.
(33)Return any unused items, if there are any unused items, to the store.
(34)Check the report for any errors, if any.
(35)Check the report for any errors, if there are any errors.
(36)They visited Paris in June and Rome in July.
(37)They visited Paris in June and visited Rome in July.
(38)John likes to read books and watch movies.
(39)John likes to read books and likes to watch movies.
(40)Some people prefer coffee in the morning, and others tea.
(41)Some people prefer coffee in the morning, and others prefer tea in the morning.