Transplanting organs ……… has proved easier than transplanting muscles.
……… is rooted in experiments in iron and steel conducted in the nineteenth century.
Intended to display the work of twentieth-century artists, ……… in 1929.
How ….. to the station from here?
……… depends on the density of both the object and the water.
The more advanced the specialization in production and the more complex the economy, ........ to make any given good reach its ultimate user by using barter.
Not only ……… places of beauty, but they also serve scientific and educational purposes as well.
I can't ....... to understand why anyone would want to be cruel to animals.
کدام یک از گزینههای زیر صحیح است؟
Jessica spent a lot of money on her car. Now she only has ....... money left to pay for her living expenses.