From the words lettered A to D, choose the word that best completes each of the following sentences.
Johnson was glad...........of your sucess
Answer Details
The best option to complete the sentence is "to hear."
The sentence is asking about Johnson's emotional state regarding the success of someone else. The phrase "glad to hear" is a common expression in English that means "happy to receive news or information about something." In this case, Johnson is glad to hear about the other person's success, so the correct option is "to hear."