He said he would return the money, and I was ______.

下列词语书写全都正确的一项是

Make a note of the questions you want to ask when you revise your lessons. ______ , you will surely forget some of them.

The parking meters are installed instreets to record and show the time _____ a driver has paid for is finished

_________ now to protect the environment, we’lllive to regret it.