Where did you go ____ vacation?[ ]

Annie _______Jeff when they were both 25years old.

Mum, have you seen my mobile phone?—The one you bought last week? I’m sorry I haven’t seen ________.

Would your younger brother go for a picnic this Sunday?—If I don’t go, _______.

Eric, are your parents angry about your English in this exam?—Oh, of them is angry. They just told me to get better grades next time.