Famous physicists from all over the world came to the US to ______the 100th anniversary of Albert Einstein’s birth.
Who was it _____ saved the drowning girl?
“How was ______ they discovered the entrance to the underground palace?” “Totally by chance.”
____ that caused him to serve dinner an hour later than usual.
. When they went into the shop and asked to look at the engagement rings, the girl brought out a cheaper one, _______ she had arranged with James.
. The famous basketballer, _______ tried to make a comeback, attracted a lot of attention.