84.We　 ________ (曲折向前)our way through the narrow street and finally got to the small house.

83. The price of a product is usually a_______ with its quality and brand.

82. Some of the information on the Internet is written by a person without　 __________(资格)or someone who does not have the solid facts.

81. The latest models of mobile phones are on sale. Would you like to a__________ me to have a look?