121.
A. submitted is incorrect because it is in the active voice and a report cannot submit, only a person can submit a report.
B. be submitted is incorrect because must is missing.
C. must submit is incorrect for the same reason as in A.
D. must be submitted is correct because it is in the passive voice (See A).
122.
A. at is the only correct one because all the other prepositions are incorrect with the meeting. Here it means during the meeting or when the meeting takes place
123.
A. Moreover is incorrect because it means in addition to.
B. As a result is not correct in the given sentence. If you want to use as a result, the sentence structure should be: There was a storm brewing. As a result the work crew was not allowed to evacuate the job site.
C. Even though is correct in the given sentence structure.
D. Consequently means the same as as a result and is incorrect for the same reason as in B: There was a storm brewing. Consequently the work crew was not allowed to evacuate the job site.