---.We didn’t find the Blacks during the lecture. --- No one had told them about _____ a lecture.
The Beatles,________ many of you are old enough to remember,came from Liverpool.
-You couldn’t have chosen any gift better for me. -______.
-Has Tommy finished his homework yet?-I have no idea; he ____ it this morning.
Mrs. Brown was much disappointed to see the washing machine she had _____ went wrong again.
Last term our maths teacher set so difficult an examination problem _____ none of us worked out.