The phrase "an acquaintance which" is not correct in standard written English.
The correct relative pronoun to use with "acquaintance" is "who" since it refers to a person.
Example: "I have an acquaintance who works in the same industry as I do."
Alternatives: "a person I know who" or "someone I met who".
Yet even the attorney general, Malik Muhammad Qayyum, seemed to acknowledge government interference in a telephone conversation with an acquaintance, which was recorded by a journalist in November.
Washington accepted, writing to Braddock's principal aide, Captain Robert Orme, "I wish for nothing more earnestly, than to attain a small degree of knowledge in the Military Art", and that the position would provide him "a good opportunity... of forming an acquaintance which may be serviceable hereafter, if I can find it worth while pushing my Fortune in the Military way".
In one Minnesota case, a lesbian couple drew up an exquisitely detailed contract for a sperm-donating acquaintance, which relinquished his paternity but allowed visitation.
I also loved her take on a full-immersion baptism, with its many attendants, including a woman depicted with two faces — one profile looking right, the other left — as if the painter were making fun of a two-faced acquaintance, which may well be the case.
And I am not persuaded by your claim that you never agreed to anything, or that you label him an "acquaintance," rather than a friend, which people tend to do when they want to treat others shabbily.
"We only help men and women make the first acquaintance, which is done on a one-on-one basis in our office, just to make the girl feel more comfortable," Ms. Buchinskaya said.
I received only one handwritten note from James Baldwin in the course of our acquaintance, which began in 1979 and came to an end with his death eight years later.
Discursive, affectionate, and satirical by turns, it reads like a sustained monologue that is both a carefully studied piece of self-revelation and an acute (though not always reliable) portrait gallery of his Irish acquaintance, which included Yeats, Æ, and Lady Gregory.
My husband, James Morgan, opened an email from an acquaintance in which he and other recipients were treated to some abominable YouTube video about Obama.
They form a network of acquaintances, which he defines as people who share a working trust even though they are not good friends.
He enjoyed a circle of acquaintances which included the writer Charles Lamb, and was a particular friend of the hydrographer Francis Beaufort.
