Choose the option opposite in meaning to the underlined word(s).
No sooner had he arrived than it started to rain?
Answer Details
The underlined phrase "No sooner had he arrived than" indicates that one event occurred immediately after another. The opposite of this would be "Long before," which means that an event happened far in advance of another event. Therefore, "Long before" is the option that is opposite in meaning to the underlined phrase.
For example, "Long before he arrived, it had started to rain." This sentence indicates that the rain started well in advance of his arrival.