127. --- Journalists have to work very quickly in order to _______. --- I know. I like that. It’s very challenging.
Some schools, including us, will have to make ______ in agreement with the national soccer reform.
Languages across the world are becoming extinct ______ endangered mammals and four times endangered birds.
Every 40 minutes we will take a 20-minute break, ______ your guide will give a short talk on different aspect of the Great Wall.
It is generally believed that Watson and Crick’s discovery about DNA was ____ beginning of _____ enormous advances in _____ field of genetics.
Schools should be lively places where individuals are encouraged to ______ to their greatest potential.