— Why didn’t you come to Mike’s birthday party yesterday? — Well, I _______, but I had something important to do at the moment.
_______MP4 and see if you can find out what is wrong with it.
There were beautiful clothes________in the shop windows.
_______you study hard,you’ll succeed in time.
He tried his best to solve the problem,________difficult it was.
Measures have been taken to prevent the river from____.