Question

come across, innumerable, commonplace, reappeared, anxious

Answer 1

1. This is the first time I have come across a funny person like Tony. 
2. Radha said that she had already made innumerable attempts to achieve it. 3. His talk seems to be very commonplace. 
4. Tom reappeared after half an hour. 
5. Rita's mother became very anxious when Rita did not come home till midnight.