.If you read the two compositions carefully,you will find they each other and no wonder Tom and Mary were punished by our English teacher.
26. –Look! How terrible his situation is! Could you help him? --I’d like to help, but ____ I can’t.
I don’t know if he ____, but if he ____ I will let you know.
One of the men gave his opinion ____ what the book said was right.
--It’s raining heavily, isn’t it? --Yes, ______ yesterday.
I can’t go to the cinema with you tonight as I have so much work to do. ____, it is raining really heavily.