1 . I have already been to the science museum a couple of times. (变一般疑问句)
________ you been to the science museum ________?

2 . 这本书总是让我想起过去的美好时光。
The book always ______ me ______ the good old days in the past.

3 . My cousin was reading in the library when I called her yesterday evening.（对划线部分提问）
What ________ your cousin ________ when you called her yesterday evening?

4 . 这张旧照片能带来许多甜蜜的回忆。
This old photo can bring ________ lots of sweet ________.

5 . 我到家时，爸爸正在浏览新闻。
When I got home, my father was ________ ________ the news.

6 . I have already bought some flowers.(改为否定句)
I _______ bought any flowers _______.

7 . My mother was taking a shower when Lucy called. (改为一般疑问句)
_______ _______ mother taking a shower when Lucy called?

8 . 他们走路回家，而不是乘坐公共汽车。
They walked home _______ _______ taking a bus.

9 . He has already cleaned his room.（改为否定句）
He _________ cleaned his room ________.

10 . Sally has a headache. (对划线部分提问)
________   ________ with Sally?