Question
The Space Force ______________two successful
verification flights before allowing the Vulcan rocket ____________national security payloads. In the following sentences, there are two blanks. Find out the appropriate words for filling up the blanks:Solution
The sentence is discussing an ongoing process or policy, so the present tense "mandates" is the correct choice for the first blank. The second blank should use the infinitive form "to carry," as it follows a verb that expresses permission or authorization ("allowing"). Hence, option 1 is the correct answer.
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