Although there is no one person in charge in commission-style city governments, there is one commissioner elected as or to preside over meetings.
A. leader... governor
B. mayor... chairmen
G. president...chairman
D. director...executor

The correct answer is B. Mayor or chairman.

Explanation:

City commission governments are types of political organization in local governments, through which there is no single person in command of the executive power of the city (the typical mayor) but rather this position is exercised jointly and shared by a group of people, usually 7, who decide the political and economic direction of the city through voting. Of these 7 members, however, one of them is usually determined as the greatest or the chairman, but only for representative purposes, since he does not have greater decision-making power than the rest of the members of the commission.

the berlin blockade was an international crisis that arose from an attempt by the soviet union, in 1948–49, to force the western allied powers (the united states, the united kingdom, and france) to abandon their post-world war ii jurisdictions in west berlin. in march 1948 the allied powers decided to unite their different occupation zones of germany into a single economic unit. in protest, the soviet representative withdrew from the allied control council. coincident with the introduction of a new deutsche mark in west berlin (as throughout west germany), which the soviets regarded as a violation of agreements with the allies, the soviet occupation forces in eastern germany began a blockade of all rail, road, and water communications between berlin and the west. on june 24 the soviets announced that the four-power administration of berlin had ceased and that the allies no longer had any rights there.

bipartisan basally means two groups of people who dont agree with each other (republican and democrat) make an agreement or work with each other