Fill the blanks with 'clue' and 'hint'. Each word may be used more than once. 1. The police are still looking for ______ in their search for the missing girl. 2. He’s dropped (= given) several _____ to the boss that he’ll quit if he doesn’t get a promotion. 3. He’d been out of the country for weeks, so I _______ him in on all that’s been happening. 4. Mum _______ she might pay for my trip to Mexico if I pass all my exams.