16. Linda was interrupted by_____ phone calls and emails, so she hardly got anywork done.(A) recent(
17. The professor spoke in such a flat, boring voice that Paula struggled to _____ onthe lecture.(A)
18. You have a _____ expression on your face right now, David. Why don’t you tellme what’s on your m
19. Since my grandfather passed away, my grandmother has always kept a pet dog as a_____.(A) compani
20. The zoo is home to a number of intelligent monkeys that have the ability to mimic thebehavior of