[ 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
Select your answer:

Random Topics:
Tenses and ModalsPrefixes SuffixesModals and PrepositionPresent Simple: affirmative, negative, interrogativeQuantifiers & Modals of ObligationDaily Routines & TensesSentence Types and ConjunctionsPrepositionBasic GrammarSubject and Verbs AgreementOther quiz:
Vocabulary › ViewThe one being talked about in the sentence.
A. thesaurus
B. subject
C. propaganda
D. dictionary
Past Simple › View
I didn’t ________ at the concert. I got scared!
A. sing
B. sang
