________ the police thought he was the most likely one, since they had no exact proof about it, they could not arrest him.[ ]

The message is very important, so it is supposed_____as soon as possible

Hello！ May I speak to LiLei 一Sure.__________

30 % of the young trees, attacked by diseases, ________pine trees

Mary worked here as a ________ secretary and ended up ________ a full-time job with the company.