I have his address, so I did not have any ________ his house. A. difficulty finding out B. difficulty finding C. difficulty looking for
—I’d like to take a week’s holiday, Mr. Smith. —_______, we’re too busy these days.
—What did he say just now? —He said ___________________________.
The book _______ I found on my way home is my brother’s.
Armstrong became interested in _______ ever since he took his first _______ at the age of six.
How many times have youthe Science Museum?