SAT- Conventions of Standard English -II

Section 1 of 1  |  Question 1 of 15 0:27:39   Hide Time
Select one answer choice from the given options.
1

Sometimes the ceiling _______ to open and let down a second course of meats, with showers of flowers and perfumed waters, while ropedancers performed over the heads of the company.

Which choice completes the text so that it conforms to conventions of standard English?

was contriving
was contrived
contrived
had contrived