----Mum, have you seen my mobile phone?----- _______ you bought last week? I’m afraid I haven’t seen ________.
He knows it is high time that he ________ at once.
I like_________ when the teacher says that my work is satisfactory ________.
Some of the exercises appear to be ___ ones that you have done, but after taking ___ second look, you will find that they are different.
---Oh, no,where is my purse? --- _______! You will find it sooner or later.
He ________ as the tallest boy in the crowd, so I spotted him easily.