——Thank you very much for everything. You’ve been so he1pful. —— . Just let me know if there is anything else I can do for you.
It's uncertain ________ the experiment is worth doing.
Do you know ________ he expects will give us a talk
He insisted that he ________ in good health and _______ to work there.
He said that he was fond of ________.
- May I borrow the ring - You can take _______ you like.