—Does the old man know the museum very well? —No, this is the first time he __________ here.
Everything comes with _____ price; there is no such ____ thing as a free lunch in the world.
Due to the unreasonable individual income _______, the gap between the rich and poor has become an outstanding issue.
_____ wealthy people with the business tax instead of the individual income tax weakens government efforts _____ the wealth gap.
More praise to yourself,____ you’ll build up confidence throughout the difficult times.
I’d rather ride a bike as bike riding has _____ of the trouble of taking buses.