This passage mainly tells that being unemployed is

The main idea of this passage is that satellites aye now used in______． A．taki

The main idea of this passage is__________A． that vicious and dangerous sports sh

The main idea of this passage is that ______A．mussels can be used to produce super glueB．m

The title below that best expresses the main idea of this passage is ______.A．The Business

It can be inferred from the second paragraph that the author of this passage______.A．is a

The main idea of this passage is to explain that_