[ Grammar ]
People often wear masks in my city to protect themselves from the __________.
A. fog
B. mist
C. smog

Random Topics:
Grammar PhrasesAdjectives and VocabularyDaily Routines & TensesPronouns of QuantityPerfect ModalsHelping and Linking Verbsa, an, the, zero articleSimple Past Tense (was/were)Dependent PrepositionMixed GrammarOther quiz:
Tenses › ViewMy boss ___ me last night at 7 pm
A. call
B. called
C. calling
Comparision › View
Do you feel _______(good) today than yesterday?
A. better
B. the best
C. best
D. good
Grammar › ViewA boy found a wallet on the street ________ he was walking to school.
A. when
B. this time
C. what time
D. while
Sentence Completion › View
Eun Sook raised her hand —– she knew the answer to the teacher’s question.
A. because
B. during
C. due to
D. even
