—How about paying a visit to Mr. Richardson, our former history teacher?—Good idea. I will e-mail him today so he ___ know ___ to expect us.
My uncle’s house is much smaller than ours, but it is twice expensive.
He seems to Jane. He knows her well.
One of the most important questions they had to consider was of public health.
The painting was what it used to be because it was once watered by rain.
Only with this can you solve the problem.