[ Tenses ]
I ________ many white-collar jobs since it appeared.
A. had threatened
B. has threatened
C. threatened
D. will threaten

Random Topics:
Verbs & Phrasal VerbsUnscramble SentenceGrammar - Present PerfectMixed ConditionalsHave as verb and auxiliaryLinking VerbsAdverb ClausesTenses & PrepositionIdentifying Sentence TypesRegular Plural NounsOther quiz:
Articles › ViewThe cafe you are looking for is in _____ Kensington Street.
A. a
B. the
C. –
Prepositions › View
The english test will begin _____ 9 o’clock sharp in the morning.
A. since
B. in
C. on
D. at
Present Tenses › ViewI am waiting for you
A. Present Perfect
B. Present simple
C. Present Perfect Continuous
D. Present Continuous
Irregular Verb › View
I … (see) you walking down the hill yesterday morning.
- seen
- saw
- see
