In the first century, the focus of the ability to "speak in tongues" was to accomplish the international work of witnessing that Jesus had commissioned his followers to do. (Acts 1:8; 2:1-11; Matt. 28:19) Yet, do those who claim to "speak in tongues" today actually use this ability for this purpose? No.
Also in the first century, when Christians `spoke in tongues', what they said had meaning to people who knew those languages. (Acts 2:4, 8) Today, people who supposedly `speak in tongues' usually just provide an outburst of unintelligible sounds.
What Paul said to the first-century Christians in 1 Cor. 13:8-10 indicates that the genuine speaking in tongues "ceased" at that time.
TONGUES, SPEAKING IN (INDEX; Watchtower Online Library)
Tongues, Speaking in (rs p. 400-p. 405; Watchtower Online Library)
Speaking in Tongues—Is It From God? (The Watchtower—2010; Watchtower Online Library)