1.A number of student (has, have) missed the opportunity to register.
2.Steven is one of the boys who always (does, do) good work.
3.Three quarters of the students (are improving, is improving).
4.Our Principal and Chairman of the occasion (has, have) arrived.
5.Every programming language and software package (has its have their) limitations.
6.Vermin (has, have) destroyed the crop.
7.A range of options (is, are) available to the contestants.
8.The director with his wife (have, has) travelled.
9.The Emir and Conqueror of the aliens (arrives, arrive) next month.
10.Three quarters of the church (was, were) painted by the students.
11.The school orchestra (play, plays) in the hall tomorrow.
12.The married couple (is, are) spending quality time apart.
13.Each couple (is, are) attending therapy with a different counselor.
14.Each of the project partners (is, are) responsible for writing the summary.
15.Billiards (are, is ) played by two to four players.
