Peter, ______ for 2 months to find a job as a manager, eventually took a position at a local advertising agency.
A. struggling
B. struggled
C. having struggled
D. to struggle
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He donated most of his savings to the school damaged by the earthquake, ______ the students to return to their classrooms.
A. enabling
B. having enabled
C. to enable
D. to have enable
The 3 college students did what they could do ______ the two children, although they themselves were put in danger.
A. rescue
B. rescued
C. to rescue
D. rescuing
_______ they become dirty, the lakes are not able to clean themselves.
A. Once
B. Since
C. As
D. Because
The headmaster hurried to the concert hall only _______ the speaker _______.
A. to find; left
B. to find; had gone
C. finding; left
D. finding; had gone