Our teacher often asks us to her carefully in class.
The lovely girl had all the flowers ____________, didn’t she?
-Can I go to the hospital to see Grandma now?-No, you can’t. It’s _________the visiting hours. Let’s see Grandma tomorrow. She won’t mind that.
Obama is ____________ the first black president of the USA. A. known as B. known of C. known for D. known to
-When shall we meet again, next Wednesday or Friday?-____________day is OK. It’s not a problem to me.
I went over what I have writ ten again and again ____________ I wouldn’t make any mistakes.