----I am really surprised that a policeman in his car __________ have hit several common pedestrians, killing one and injuring three.----Yes, If one __________ ask for trouble, what can we say?

Keep up good state of mind even if you ________ fail plenty of times.

—Shall I inform him of the change of the schedule right now?—I am afraid you ________, in case he comes late for the meeting.

Tina_________wait _________ see her parents .

 —Look! A book is on the floor. Whose is it?—It ______be Rick's. It has his name on it.