______ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.
A. What B. Though what
C. In spite of what D. However what
According to the rules, students ______ get grades not lower than 85% in any subject in order to get the scholarship.
A. will B. shall C. may D. would
We were told not to touch the equipment in the laboratory unless .
A. allowed to do B. allowing to do
C. allowed to D. allowing to
It is the educational system, rather than the teachers, _______ is to blame for the students’ heavy burden nowadays.
A. who B. this C. that D. whom
---- Did he come back early last night?
---- Yes. It was not yet eight o’clock _______ he arrived home.
A. when B. that C. before D. until
After a few days together, they got to the point _______ they could read each other’s thought.
A. which B. that C. where D. when
