--- I ______ so busily recently that I ______ no time to help you with your math. --- That’s OK. I can manage it by myself.
It is said that his carelessness ____ the terrible accident.
Tom as well as his friends ____ to visit our school soon after they arrive in Changsha.
By the time you ____ in, I ____ two letters.
To ____ your dream of becoming a scientist, you must work hard from now on.
I suggest ______10% of the bill for the waiter or waitress if a tip isn’t included.