The rate of racial progress varies in different areas of the country, but in the past ten years _________ more improvement.
#101835
A
there is
B
it is
C
there have been
D
there has been
推荐题目
The poor little girl _______ so much since her parents died .
#103841
A
went through
B
has gone through
C
went over
D
has gone over
—I’ve got to go now.— Must you? I _________ you could stay for dinner with us.
#101998
A
think
B
have thought
C
thought
D
am thinking
---The president _____ by his doctor today that his cancer has come back.
#101269
A
informs
B
has informed
C
has been informed
D
is being informed
— The window must have taken you quite a lot of time that day. — Right. They____ for weeks.
#103071
A
haven’t been cleaned
B
hadn’t been cleaned
C
didn’t clean
D
haven’t cleaned
Quantities of precious jewelry_____ buried_____ in the earth.
#101917
A
was found; deeply
B
were found; deeply
C
was found; deep
D
were found; deep
