A. taking off
B. taking on
C. taking down
D. taking up
A. let alone
B. let go
C. let down
D. let out
A. accurate
B. critical
C. fatal
D. immune
A. shelter
B. economy
C. issue
D. commerce
A. acknowledgement
B. comprehension
C. accommodation
D. vibration
A. applying
B. preceding
C. flourishing
D. founding
A. damaging
B. smuggling
C. transmitting
D. scattering
A. improvised
B. devised
C. compromised
D. supervised
A. availability
B. credibility
C. capability
D. flexibility
A. presentations
B. proposals
C. representations
D. presents