Jane is talented in painting and ________ paint great pictures at the age of 5．（ ）
A．mayB．canC．mightD．could
A break between classes is a good time for students to play sports and talk with their classmates．So it _______ helps with students health，________ improves their social skills． （ ）
A．either；orB．neither；nor
C．not only；but also
Melting ice（融冰）can cause sea levels to rise． Since 1993， sea levels _______ at a speed of 3.2 cm every 10 years． （ ）
A．roseB．have risenC．rise
Cathy sold some of her things in a yard sale and _________ the money to a children's home．
A．gave awayB．gave upC．gave out
Roy works in London． It ________ him about half an hour to get to work by bus every day． （ ）
A．costsB．spendsC．takes
Around the world， 300 million tons of plastic ________ each year， of which about 10 percent ends up in the sea． （ ）
A．is createdB．was created
C．creates