---May I open the window to let in some fresh air? ---________.A. Take care B. Hold on C. Go ahead
—I find the more we study, the more difficulty we have _______ out Maths problems. —Oh, I agree with you. Maths is more and more difficult.
_____ Jack ______ Jim has been to China, but _____ of them knows much about China in fact.
— Have you found your lost mobile phone? —No, I haven’t found ___________, but I bought ___________ this morning.
How can _____ man like him be recommended as _____ head of our hospital?
—You won the first prize in the last Physics competition once again. —__ _. I made several mistakes.