Question

①All of us are students from English.(改为否定句）----- ----- ---- ---- a student from English

②I was a middle school student last year.(改为同义句) I ------a middle school student
------ last year. ③The light takes many years to reach the earth.(对many years提问）
------- ------- -------- the light ------- to reach the earth? ④They had a wonderful time in the science museum(改为同义句) They------ ---------in the science museum.

Answer 1

①All of us are students from English.(改为否定句( none )( of )( us )( is )a student from English②I was a middle school student last year.(改为同义句) I ( wasn't )a middle school student ( before )last year. ③The light takes many years to reach the earth.(对many years提问）
( how long does )the light ( take )to reach the earth? ④They had a wonderful time in the science museum(改为同义句) They( enjoyed )( themselves )in the science museum.

Answer 2

②I --wasn't-a middle school student
-until- last year.
③The light takes many years to reach the earth.(对many years提问）
-How-- -long- -does-- the light -take- to reach the earth?
④They had a wonderful time in the science museum(改为同义句) They-enjoyed-- -themselves-in the science museum.

Answer 3

1. None of us is
2. am, since
3. How long does, take
4. enjoyed themselves

Answer 4

1 none of us is 2 wasn't until 3 How long does take 4 enjoyed themselves

Answer 5

1,none of us is
2.wasn't until
3how long does take
4enjoy themselves