I found ____ hard to get out of bed on cold winter mornings.
Hello, Mary! This is John. You must know why I _________ you.-Oh, hello, John! I’ve waited for this call since last month.
Have you returned the book to the library _______?—Yes, I have _______ retuned it.
Tom often plays basketball_____ his friends.[ ]
Natural disasters are dangerous! —Yes,________ earthquake that happened in Philippines killed _______ number of people.