Read this lead to a news story: on saturday, local residents toured the new maker lab as part of its expansion project celebration. which detail is missing from the lead and should be added during revision? where is the new maker lab? who led the tour of the new lab? why did the library offer the tour? when did the celebration and tour take place?

Question: Which detail is missing from the lead and should be added during revision?

The missing detail from the lead is  

A. Where is the new maker lab?

The time and reason are already in the lead so the place where the event will be needs to be added.

the capability of a bicycle makes some people want to go very fast and others to go very slow. as long as you are careful,

answer: b (host)

viruses use the cells of living organisms to reproduce. the cell which is used by virus is called as "host cell". it is a living cell in which virus multiplies, example bacteria, plant or an animal cell.

in this, the virus is a parasite, which uses host cell for its benefit (reproduction) by using the cell machinary of host cell.