It is thought that a new system _____ the place of the old one in that company. But things are getting worse and worse.

I really don’t know ________ I had my money stolen.

He would have gone to visit Lindayesterday, however , he _____on by Linda instead.

rgot your keys when you left homein the morning.–Good heavens,___________.

I missed the beginning of ________musical programme The Voice of China.—What a pity! You should leave school half _______ hour earlier.