If you want to have a good mastery of knowledge,you must_______ what you are being taught in class and make immediate use of it.
In order to improve English, __________.
----I’ve looked everywhere, but I haven’t found any black ink. ----Then, I’m afraid there is _______ left.
I want to know who________for the spoiled child.
----Are the new rules working ? ----Yes. _______books are stolen.
----Michael was late for Mr Smith’s oral class this morning. ----_____? As far as I know, he never came late to class.