If you be there before 10, you have to say goodbye to each other and set off now.
If you smell the flowers before you go to sleep, you may just sweet dreams.
---Have you finished reading Gone With the Wind?---No, I_________ my homework all day yesterday.
The island is ____ attractive in spring and autumn because of the pleasant weather in both seasons.
_______ in my life impressed me so deeply as my first visit to Tibet.
Her grandmother __________a lot of suffering when she was ill last autumn.