[ Grammar & Vocabulary ]
The students were _____able to _____join the given link during the online lesson.
A. re- , un-
B. un- , re-

Random Topics:
Tenses and ComparisonsPhrasesComparison Degreeanother/the others/each other/one anotherActive-Passive VoicesDegrees of ComparisonPresent Perfect TensePresent simple, Present continuous, Singular, PluralModals and Present TensesNoun QuantifiersOther quiz:
Tenses › ViewComplete the sentence: How long __________ (you/wait) here?
A. had you been waiting
B. have you been waiting
Conjunction › View
My sister waited for the bus for an hour ___________ it didn’t come.
A. and
B. because
C. but
Superlative Adjectives › ViewThe _______________ animal in the world is the blobfish.
A. ugly
B. uglyiest
C. ugliest
D. most ugly
Grammar and Passive Voice › View
Which of the following sentences is in the passive voice?
A. The gardener will plant the flowers.
B. The flowers will be planted by the gardener.
C. The gardener is planting the flowers.
D. The flowers are planting by the gardener.
