Watching the online open courses of some famous European and American universities _______a new fashion among white collars in China over the past few months.
#102958
A
became
B
had become
C
has become
D
becomes
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—Alice, why aren’t you at work today?—I       a day off.
#102771
A
have given
B
have been given
C
gave
D
was given
 Take care! Don’t drop ink on your shirt, for it _______ easily. 
#99906
A
won’t wash out
B
won’t be washed out
C
isn’t washed out
D
isn’t washing out