It was the natural disaster, rather than human errors, that ________ for the death of so many innocent people.
A. are blamed
B. was to blame
C. was blamed
D. were to blame
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Please don’t stand up in class until you ______.
A. were told to
B. are told
C. are told to
D. were told
Oral English exams _______ in China twice a year to give more chances to the students.
A. has held
B. will be held
C. will hold
D. has been held
When I got to his house, I found that the walls _____ .
A. are being painted
B. are painting
C. were being painted
D. were painting
Quantities of soil ________ in the area, resulting in the increasing number of natural disasters.
A. is washed away
B. have washed away
C. hadwashed away
D. have been washed away