. I failed in the final examination last term and only then____ the importance of studies. A I realized B I had realized C had I realized D did I realize
Visitors were _______ at the ________pictures that the guide showed.
I can never forget the day ________ we worked together and the day ________ we spent together.
Is this the reason _______ he was late for the meeting?
I have many friends, _______some are businessmen..
There is something wrong with your bike and you’d better _______ it _______ and repair it.