—The exam was easy,wasn't it?—Yes,but I don’t think could pass it.
Mother made a promise ________ I passed the exam, she would buy m e a computer..
He tried his best, but he couldn’t ________ the college entrance exams last year.
Because of my poor English I’m afraid I can’t make myself ____.
I really appreciate that your help is of great _________.
He insisted that we ________ rest until we finish the work.