It is the educational system, rather than the teachers, _______ is to blame for the students’ heavy burden nowadays.
#85156
A
who
B
this
C
that
D
whom
推荐题目
.It was _____ his mother came in _____ to prepare his lessons. 
#85386
A
not until; did the boy begin
B
until; that the boy didn’t begin
C
until; did the boy not begin
D
not until; that the boy began