[ Present Perfect or Past Simple Tense ]
Technology __________ some failures over the years.
A. has
B. has had
C. had
D. having
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Grammar and PrepositionsSentence Types and ConjunctionsPresent Perfect Tense and Simple Past TenseAdverbs, Modals, Preposition of timeSimilesPast simple - Irregular VerbsPast Perfect and Past Perfect Continuous1st and 2nd ConditionalsAdverbs by TypeGerunds as Objects of PrepositionsOther quiz:
Vocabulary › ViewThe council approved a city-wide _______ to conserve water by planting drought-tolerant plants.
A. bystander
B. distraught
C. endeavor
D. irate
E. laborious
Grammar › View
Which one is correct?
A. If Sally late again, I will mad.
B. If Sally is late again I will be mad.
C. If Sally is late again, I will be mad.
D. If Sally late again, I will mad.
Grammar › ViewOne difference between lager and ale ___ the kinds of yeast used in the fermentation process.
a. lies in
b. lies at
c. lies on
Grammar › View
You ___ take the car without permission.
A. don’t have to
B. mustn’t