Mother wanted to be a good provider, a role she _______ since her marriage to Father.
#101003
A
shoulders
B
has been shouldering
C
is shouldering
D
shouldered
推荐题目
Oetzi, the 5,000 years old “Iceman”, ______on the alpine border between Italy and Austria in 1991.
#102964
A
was discovering
B
was discovered
C
had been discovered
D
discovered
 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