You don''t look well . You ____ have a fever .
I have been keeping that photo ________ I can see it every day, as it always reminds me of my college days.
Doing your homework is a sure way to improve your test scores, and this is especially true ________ it comes to classroom tests.
The roof fell ________ he had time to dash into the house to save his baby.
Tom make up his mind to get a seat for the football match ________ it means standing in a queue all night.
________ I had walked for six hours, I was tired out.