—The woman biologist stayed in Africa studying wild animals for 13 years before she returned.—Oh, dear! She _______ a lot of difficulties!
--- Do we have to hand in our research reports this afternoon, Professor Smith?--- Yes, you _______ . I will be waiting to check them all the afternoon.
The young couple had a quarrel last night and neither of them would give in to ______.
In the rice-growing world, ______ Chinese scientist, Yuan Longping, is ______ leading figure.
You are well prepared for the job interview, ______ there’s no need for you to get so nervous.
---Shall we open the window to let some fresh air in? ---_________. I’m feeling a little cold.