下列各句中，没有语病、句意明确的一项是（ ）

Sarah pretended to be cheerful, ____________ nothingabout the argument.

In a leap year,the extra day _____the second month, giving it 29 instead of the usual 28 days.[ ]

He asked us to __________him __________carrying through their plan.

Hardly any people believe that a meeting will lead to an enduring love.