A. | the; the | B. | 不填; a | C. | the; a | D. | a; 不填 |
A. | get paid | B. | got paid | C. | have paid | D. | had been paid |
A. | wherever | B. | however | C. | whatever | D. | whichever |
A. | will be flying | B. | will fly | ||
C. | have been flying | D. | have flown |
A. | to act | B. | to have acted | C. | acting | D. | having acted |
A. | Having spent | B. | To spent | C. | Spent | D. | To have spent |
A. | yet | B. | still | C. | even | D. | thus |
A. | which | B. | who | C. | where | D. | whom |
A. | all in all | B. | for one thing | C. | on the contrary | D. | by the way |