He went home for lunch____ the clock struck twelve.
| A．while | B．immediately | C． right away | D．at once |
,the party was pleasant.
| A．In all | B．At all | C．After all | D．All in all |
I congratulated them all their results.
| A．on | B．in | C．about | D．for |
What is the best way you can imagine the overuse of water in our school?
| A．reducing | B．to reduce | C．reduced | D．reduce |
Rather than boring TV shows, he always prefers original novels
| A．watch; read | B．watching; read | C．watch; to read | D．to watch; reading |
Listen! Do you hear someone for help?
| A．calling | B．call | C．to call | D．called |