It was _______ he was ill that he didn’t go to school.
| A．since | B．as | C．because | D．though |
One way to understand thousands of new words in gain _____good knowledge of basic word formation.
| A．/ | B．the | C．a | D．one |
Jumping out of ____airplane at ten thousand feet is quite _____exciting experience.
| A．/, the | B．/, an | C．an. an | D．the, the |
I don’t like talking on ______telephone ; I prefer writing ____letter.
| A．a, the | B．the. / | C．the ,the | D．A ,/ |
The sign reads “in ease of___ fire ,break the glass and push _____red button”
| A．/,a | B．/,the | C．the ,the | D．a ,a |
I earn 10dollars ____hours as ____supermarket cashier on Saturday.
| A．a, an | B．the ,a | C．an ,a | D．an ,the |