.He is really an excellent doctor and he is _____ to becoming an expert in this field.
—Did the book give the information you needed ? —Yes. But _____it, I had to read the entire book.
_____the soap operas, she got down to finishing her homework.
I’m afraid Mr. Harding ______see you now. He’s busy.
The old man has four sons, and two _____ turned doctors.
—Thank goodness, you are here! What _____ you? —Traffic jam..