[ 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:
Grammar › ViewGRAMMAR RULES: SIMPLE PAST OF BE VERBS
Pick the right form of the verb BE in past to complete the sentence.
Where ________ you yesterday?
A. was
B. were
Grammar & Vocabulary › View
Children in Britain start school at the _____ of five.
A. years
B. old
C. age
D. time
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.