He didn’t make ________ clear when and where the meeting would be held. . 

The group of the aged are close companions, and many of ______ have known each other for decades.

—Silly me！I forget what my luggage looks like.—What do you think of ________ over there？                     

- Do you have______ready for the opening ceremony. Ted? - No. we still need some volunteers.

. When foreign people talk about the cities of China, the first ______ comes into their mind is Beijing.