Choose the correct word/phrase to complete each sentence.
 
The writer admits that she ______ have done more research, but didn't have the time.
Aneed
Bmust
Ccould
Dought
Choose the correct word/phrase to complete each sentence.
 
The writer admits that she ______ have done more research, but didn't have the time.
Aneed
Bmust
Ccould
Dought