[ Prepositions of Time and Place ]
We went skiing on the mountains ___ the weekend.
A. at
B. on
C. to

Random Topics:
Temporal Conjunctions and ConnectivesRelative ClausePronouns and QuantifiersAdjective Clause and Adverb ClauseLinking Words and PhrasesAdjectives (-ed / -ing)was wereVocabulary and GrammarModal PerfectPresent Simple x Present ContinuousOther quiz:
Grammar › ViewIdentify the ADJECTIVES in this sentence:
“Lazy people often lead dull lives.”
A. people
B. lives
C. lazy, dull
D. lazy
Vocabulary › View
According to the vocabulary list, what does “Infer” mean?
A. To judge or decide the value of something.
B. To make an educated guess based on information.
C. The setting or situation in which something happens.
D. To reach a decision or end.
Subject-Verb Agreement › ViewOccurring naturally (is, are) over 100 elements, or substances that cannot be separated into different kinds of matter.
A. Is
B. Are
Conjunctions and Preposition › View
The river water is severely polluted, mostly________ the dumping of raw sewage.
A. due to
B. lead to
C. because
D. so