I'm not sure any lunch can beat ___ we had the best pizza in the whole world.

A) yesterday's;

B) yesterday's:

Answer: A) yesterday's;

Explanation:

In this example, the right answer to use the semicolon. The semicolon is used to join two independent clauses that are really closely related in thought. This punctuation mark is between the full stop and comma.

In this example using the semicolon connected these two sentences without using the conjunction.