Although you may meet some difficuIties,you should never .
Tom, before you buy the expensive coat, please think about ______ you can afford it. A. that B. when C. whether
— Do you mind taking the box of books to the office for me?— ____________ . Put it in my car, please.
As young adults, it is our ____________to help the disabled.
The girl asked the teacher _______________.
I won't come back _________August 5 and 7, so you’ll have to go there alone.