— ____________is it from your school to the park?— 30 minutes’ walk, I think.
—Sandy,can you tell me ________? —Sorry,I’ve no idea.
I don’t know the teacher ________ is talking with Miss Wang.
If I find his phone number,I ________ you.
People often go skating in ________ winter.
.—Has your father finished his report? —Sorry,I don’t know.He ________ it this morning.