She can't ride a bicycle, let alone _____.

Patriotism is a noble virtue. We all should have patriotism to be a good citizen/if we want to be a good citizen.

Our freedom fighters risked their lives in the war of liberation so that we could get an independent country

He was not hungry at all. Had he been hungry, he could have eaten the whole burger.

They continued to walk until they felt tired.

Corruption is rampant in the country. It is high time the government took steps against corruption. 

21st February is a red-letter day in our national history, because we had to shed blood on this day