Why do many students stick to private tutoring _____ they could easily master such knowledge at school?
A.unless B.before C.after D.when
The Floreana tortoise, once considered to ______, is being brought back from the dead with careful conservation.
A.be wiped out B.have been wiped out C.wipe out D.have wiped out
While early literacy skills are important for a child’s growth, there are some ______ doubt whether we are forcing our kids to read too early.
A.whose B.which C.what D.who
All the staff of the company, who ______ extra hours these days, hope to finish the project as scheduled.
A.will work B.have been working C.were working D.have worked
—I heard that the teacher would punish us all because nobody ______ responsibility for the broken window.
—I think we must ask Henry to tell the truth. This may be the best way to approach it.
A.cast B.ranked C.claimed D.attained
The report at the conference analyses in detail why a new legal is needed to better protect the environment.
A.currency B.framework C.allowance D.occupation
