Other genetic similarities suggested they all ________ a single, common ancestor about 300 years ago.
#99611
A
had
B
have had
C
have
D
had had
推荐题目
Mother wanted to be a good provider, a role she ______ since her marriage to Father.
#101143
A
shoulders
B
shouldered
C
is shouldering
D
has been shouldering
Mother blamed the dog for breaking the glass, but in fact I _____.
#103293
A
was to be blamed
B
is to be blamed
C
was to blame
D
is to blame
A highway bridge ______over the river. They hope to finish it next month.
#101922
A
was built
B
is built
C
has been built
D
is being built