This is my question:
It was in 1990 __ I met my husband.
a. which b. when c. who d. that.
I opted "B. when" because we talk about "time", how about "that"? Thanks in advance.
It would be somewhat like saying 'the place where' or 'the time when'.
But you can say 'It was in 1990, when I met my husband, that I knew I wanted to live in France.'
I don't know if I can explain it better. Maybe one needs to be somewhat familiar with English grammar and its 'logic' to understand what I am saying.
The test sentence takes the form of a so-called cleft construction, a two-part sentence consisting of a main clause introduced by 'It is/was/...' and a subordinate, whose purpose is to place emphasis on the main clause complement (underlined in the examples below').
Cleft sentences are essentially of two types:
(1) Those where the main clause complement is a noun phrase.
(2) Those where the main clause complement is a form other than a NP (typically an adverbial of place, time or manner).
In type (1), the connector is a relative pronoun (i.e. who, which or that), e.g.
It was John who/that lent me the money.
while in type (2), it is the conjunction 'that' :
It was here that he was born.
It was in 1990 that the Internet began to take off.
It was with a heavy heart that he signed the death warrant.