I really don’t know______ Mary found her lost necklace that day.
__________ parents is very important for children.
You can stop to _____ your notes while making a speech.
Both Mr. Wang and Mrs. Wang _______ his blind son to attend a school which ______ blind children
Mr. Read made up his mind to devote all his life to _____ some schools for poor children.
The little girl was allowed to go swimming ____ she must keep herself near her father.