16. If the trainer had
(do) his part, the athletes would have won the contest.
A do
B. did
C does D. done
17. If the teacher had
(teach) the students well, they would have passed the exam.
A. taught
B. teach
C. teaches D. teaching
18. If the old woman had (forget) her children, they should have helped her
remember
A. forgot
B. forgotten C. forgetting D. forget
19.. If Nena had
(sing) well, she should have competed to the next level.
A sing
D. sings
20. If the motorist had
(wear) a helmet, he could have survived the accident.
A wore
B. wom
C. wear D. wears
B. sung
C. sang​