The traffic on the main streets has a longer green signal than _______ on the small ones.
| A．one | B．this | C．that | D．it |
Yuan Rongping is a great person ______ his life to helping farmers harvest more rice.
| A．devotes | B．devoting | C．devoted | D．who devote |
A certain famous actor donated a good sum of money and began _____school in this village, where many local children begin ____school at a proper age.
| A．a, a | B．/,a | C．the,/ | D．the, a |
Grandma does all her own shopping and cooking—I have never seen ____aged person.
| A．an independent | B．a more independent |
| C．the most independent | D．the more independent |
Our English teacher told us to find out ____the differences between American English and British English lie.
| A．where | B．how | C．what | D．which |
—Lisa, what do you think of the job of being a nurse?
—In my opinion, it ____ be difficult sometimes though it seems easy.
| A．should | B．can | C．must | D．need |