Climbing Mount Everest          great skills and        not without risk.
#6097
A
requires;are
B
required;were
C
requires;was
D
requires;is
推荐题目
By all _______, you must try every _______ to help him.
#7316
A
mean, mean
B
means, means
C
means, mean
D
mean, means
Next week there will be a basketball match between the ________ and the ________of our school. 
#5077
A
woman teachers;girl students
B
woman teachers;girls students
C
women teacher;girls student
D
women teachers;girl students