The traditional ____ to dealing with complex problem is to break them down into smaller, more easily managed problems.
________one scientist has pointed out, children’s skulls are not fully developed.
--- Hi, Kate, can I use your bike for a while this afternoon?--- Sorry.??__________?.
---Do you know who invented ________ telephone?---No. But it is really________ most important invention.
—— I’m thinking of tomorrow’s math test. I’m afraid I can’t pass it. ——______. I’m sure you’ll make it.
Many died from the diseases ______by the Europeans.