[ Preposition ]
They are worried ___ the future.
A. of
B. on
C. at
D. about

Random Topics:
Conditional Sentence Type 2Run-On SentencesBe going to / WillSentences vs Run-OnsSubordinate ConjunctionsComparative and Superlative AdjectivePresent and Past Simple TenseAdjectives & QuantifiersSimple Past ContinuosQuestion TagsOther quiz:
Vocabulary & Grammar › View. We provide _____ learning programmes based on individual performance.
A. human-like
B. interactive
C. personalised
D. virtual
Vocabulary › View
Ist
A. One who believes in
B. Warn
C. Exaggerated fear
D. Killing
We’d better ___ home now.
A. go
B. to go
Grammar › View
Identifying Phrases and Clauses: I know what I need to do.
A. Gerund Phrase
B. Prepositional Phrase
C. Independent Clause
D. Dependent Clause
