We will not be able to get a table at the popular bistro _________ we call for a reservation immediately, as they are usually booked solid.
2
writingWhich choice completes the text so that it conforms to the conventions of Standard English?
A
because
B
unless
C
provided that
D
since
Correct Answer: B
Choice B is the best answer. "Unless" introduces the necessary condition to avoid the negative outcome.
Choice A is incorrect because "because" implies a cause. Choice C is incorrect because "provided that" implies a positive condition. Choice D is incorrect because "since" implies a cause.