has promised to keep the secret, so he won’ttell anyone even though ______

_______ over a week ago, the books are expected to arrive any time now.

I’m going to spend the winter vacation in Shanghai,_______I have relatives.

. — Amanda is always polite and__________ towards her students.— What a good teacher!

1——Why is the classroom sodirty?——Sorry, Sir. It_____ yesterday. We forgot to do it.