From the words lettered A to D, choose the word or group of words that best completes each of the following sentences.
He sent a card to his parents to congratulate them......their diamond wedding anniversary
A
over
B
on
C
in
D
about
Verified Correct Answer: B.
Grammar & Contextual Explanation
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #23630)