The state-run company is required to make its accounts as _________ as possible for its staff to monitor the use of the money.

I remember you came to see me ____ a cold Tuesday evening. [ ]

The government of Chongqing is building ________ cheap and good houses for the people.

This is his only request that the room ______ after being used.

We have sent some books to the children in that village. However, they still need ______.