I can’t find my pen. Could you help ______ find it?
The teacher asked his students to leave a space in their exercise books ________.
The driver who died in the accident _________, but he didn’t wear the seat belt.A. could survived B. could have survivedB. must survived D. must have survived
I can’t tell you the exact time when I’ll get there, maybe at 8 or 9 or later. __________, I’ll be there as early as I can.
The headmaster will not permit the change in the course, nor _________ it a thought.
— The book deserves __________ a second time.— Sorry, I can't follow you clearly.— I said that the book was worth__________.