---Excuse me, Sir, is the swimming pool open every day?---______, only from 6:00 pm to 10:00 pm
Everything depends on ____we have enough time and money. A. that B. how C. if D whether
We found some precious jars and vases in an ancient tomb, ______you know , are valuable.
Last night he saw two dark ___enter the building, and then there was the explosion.
Shanghai is ___most beautiful city and I believe I will come for___ second visit .
---__________in New York does he live? --- Maybe the west.