We should keep in mind that the earth is our only home and only by saving the environment________ourselves.
| A．we can save | B．can we save |
| C．we must save | D．must we save |
Be quiet！Our teacher has _________ to tell us.
| A．important anything | B．something important |
| C．important something | D．anything important |
Nearly________ of the surface of our planet is covered by water.
| A．seven-ten | B．seven-tenth | C．seventh-ten | D．seven-tenths |
It's said that __________ is going to give us a lecture.
| A．an American famous young | B．a famous American young |
| C．a famous young American | D．a young famous American |
We had ___________ wonderful time _________the party_______ other day.
| A．a, on, the | B．/, at, on | C．a, at, the | D．/, on, / |
----Mary Beth, here you are! _________!
----Thank you for meeting me here, Betty.
| A．You are welcome to my hometown |
| B．Welcome to my hometown |
| C．Welcomed to my hometown |
| D．You are welcome |