Which one do you want to buy, an iPod touch 4, an iPad 3 or an iPhone 5?—______. They are too expensive.

What do you think of him?— I hate people ____ talk much but do little.

Please ________ the meat and I want to make some dumplings.

Lucy spent three years _______ Chinese before she came to China.

Lin saw __________ UFO last month. It’s strange.