33.Only after he had spent several nights working on the math problem_______to wonder whether the problem was wrongly set.
If you__the bottle and cigarettes,you'll be much healthier.
When he realized the police had spotted him,the man__the exit as quickly as possible.
Having decided to rent a flat,we__contacting all the accommodation agencies in the city。
--I'll help you whenever you need me,--I would love____________.
-Have you ever seen Peter recently? --Yes. He__________ me to ask you how you___________ along with your new job these days.