—I don’t know much about computer.—I don’t know, . Let’s go and ask our computer teacher for help.
He speaks too quickly_________.
If you have questions,you should ask the teacher _________help.
This is the best hour I can _________ I_________ in the past twelve years.
—How do you learn English? —I learn English by _________.
Which word of the following doesn’t have the same stress as the others? A. Repair.B. Against. C. Magic.