Question

read the excerpt from president roosevelt’s state of the union address.
i cannot prophesy. i cannot tell you when or where the united nations are going to strike next in europe. but we are going to strike—and strike hard. . . .
of course, there have been disturbances and inconveniences—and even hardships. and there will be many, many more before we finally win. yes, 1943 will not be an easy year for us on the home front. we shall feel in many ways in our daily lives the sharp pinch of total war.
the repeated use of the word blank reinforces the strength and power of the un
options: we, strike, cannot, many

Explanation:

The question asks which repeated word reinforces the strength and power of the United Nations/Allied forces. Analyzing the excerpt:

• "we" is used to unify the speaker and the audience, emphasizing collective resolve.
• "strike" is repeated ("strike next", "going to strike—and strike hard") to emphasize decisive, forceful action, which directly conveys strength and power.
• "cannot" focuses on limitations, not strength.
• "many" refers to hardships, not power.

Repeating "strike" highlights the commitment to take strong, impactful military action, which reinforces the strength and power of the group.

Answer:

strike