---Jackson was late for Mr. Black’s literature class this morning. ---_____? As far as I know, he never came late to class.
Come and see me whenever ____.
In the ant city, you will see many problems _____ in this way.
From his _______expression, we can guess that the problem maybe was quite _______.
I have had my bike ___ , and I'm going to have somebody ___ my radio tomorrow.
I'm afraid that I can't make myself ___ be cause of my poor English.