A: Can I help you, madam? B: I want_ . A . two boxes of apple B. two glass of water C. two bowls of porridge
– Why do you like the boy so much, Sophia? – Because he is trying __________ best to catch up with others this term.
Paper is made ____________ wood. So saving paper is saving forests.
The light bulb is really __________ useful invention.
--- I’ll fly to Qingdao for my holiday this weekend. --- Wonderful! ____________
--- What do you think of the book written by Mo Yan? --- Oh, excellent. It is worth ___________ a second time.