Do you know how to learn English well as _________ second language?
My mother hopes _______ her do some housework first.
—We have ______ up early in order to catch the early bus.
--- Will you play football with us if it ____ tomorrow?--- OK, but I’ll ask my mother if __ something important to do.
.The dog __ several days ago, I felt very sorry for its __ .
Half of the class ___ most of the work . Some of the work ___ really difficult .