Hello, can I speak to Frank?— I’m sorry, he’s just left home. Hereach his office by 9:30.

Several weeks had gone by _______ we realized the painting was missing.

Mary said that once ________ him you would like him and make friends with him.

__________ is the cost of the trip to Nanjing — About forty yuan per person.

Our bodies are strengthened by taking exercise________,our minds are developed by learning[ ]