As he works in a remote area, he visits his parents only ____.
Despite the fact that he has lived in China for many years, Mark still can not______ himself to the Chinese customs.
When it______the writer’s pastime, I was reminded______of the writer’s love of the sea.
The shoe was discovered on the Chilkoot Pass, the famous trail used by people ______ gold in Alaska.
Mr Black was driving fast to take his wife to a nearby hospital because their baby was ________.
—Do you have ________ difficulty working out the problem? —Yes. It is ________ me.