Question

The old lady is ill. You'd better take her to the hospital right away.

1. A.
   at times
2. B.
   at once
3. C.
   not far away
4. D.
   soon

Answer 1

B
right away意为“立刻”；at times意为“有时”；at once意为“立刻”；soon意为“不久”；not far away意为“离……不远”。故选B。