what has recently been done to provide more buses for the people, a shortage of public vehicles remains a problem.
_________ many times, she still can’t remember it.
—Where on earth have they gone? —I have no idea, but I wish I .
“Well done, John! Not a single mistake _______ in your exam paper this time!” said the teacher.
This machine __________ It has worked for years.
When they moved to Canada, the children ______ to the change very well.