Though I was tired out that evening, I _____ from falling asleep by the great pain in my knee. 
#100941
A
was prevented
B
had prevented
C
has prevented
D
am prevented
推荐题目
—I suppose the young beautiful actress is about 20 years old. — ________ ! She is still a college student. 
#104763
A
You guess it
B
You guessed it
C
You have it guessed
D
You’re guessing it
Computer cannot remember who _______; it simply does what _______.
#104640
A
has used it; it is told
B
will used it; it was told
C
uses it; it has told
D
has used it; it told