[ Grammar ]
Unless the new treatment __, it may cause harm.
A. be thoroughly tested
B. has been thoroughly tested
C. was tested thoroughly
D. will test thoroughly

Random Topics:
Preposition & GerundComparisonModals, Phrasal Verbs, Gerunds and InfinitivesSubjunctivesVocabulary and Sentence StructureMix-TensesFirst Conditional SentenceCoordinate ConjunctionPresent Progressive TenseHow often - long - much - manyOther quiz:
Verb Tenses and Subject Verb Agreement › ViewIdentify the correct verb form: By the end of the week, I ___ my report.
A. submit
B. submits
C. submitted
D. will have submitted
Grammar › View
Could you please tell me _____?
A. if is this shirt on sale
B. is this shirt on sale
C. if this shirt is on sale
D. why is this shirt on sale
Tenses, Tag Questions, Phrasal Verbs › ViewYour sister lives in Spain, ______________?
A. doesn’t she
B. isn’t she
C. is she
Pronoun › View
We wanted to come on time, but …bus was delayed
A. Its
B. ours
C. our
D. your
E. yours
