________is believed that the island can be a paradise(天堂)when people live________.
.—You may find the key to the maths problem on page 107 . —Ah, it’s so simple . I wonder why I of that .
________________ he will come back this week or next week is not decided .
He traveled from place to place , social problems of all kinds .
Thank you for sending us fresh vegetables of many kinds . You have done us great service .
.Doctors and medical supplies to the scene of the accident immediately it happened .