----Have you been to the Summer Palace? ----Perhaps not in my memory._______, it might have been during my early childhood
___________ caused the accident is still a complete mystery.
It is generally considered unwise to give a child _____________ he or she wants.
. _____________ we’ll go camping tomorrow depends on the weather.
____________ we can’t get seems better than ____________ we have.
Sarah hopes to become a friend of _____________ shares her interests.