---John is said to have learned Italian in Italy for five years. --________ he speaks it like a native speaker.
The teacher that his students had difficulty in English grammar, decided to give them more examples.
Over the past decades, sea ice is decreasing in the Arctic global warming.
Never in my dreams Zhao Benshan’s performance during the CCTV Spring Festival Gala was considered the best.
The woman rushed out she felt the house shaking.
Many scientists believe that global warming, if , will cause extreme climate changes this century.