I have __ ___ decided when to leave, but my sister hasn’t decided__ ___.

________ nearly all behavior is learned behavior is a basic assumption ________ has been put forward by social scientists

Your parents _______you many things in their lifetime, but you may not realize that until they are gone.

Jim went to answer the phone __________ , Harry started to prepare lunch

u think he’ll succeed —Well,he’s helped by so many classmates, what is more, he works extremely hard So hewill________succeed