[ Grammar & Vocabulary ]
It is convenient _______ up a new word on a smartphone when learning English.
A. looked
B. looking
C. look
D. to look

Random Topics:
Grammar - Present and Past PassiveModals and Adjectives (ed-ing)Order of AdjectivesActive and Passive Gerunds and InfinitivesGrammar - PunctuationAdjective, Adverb, and Noun FormsPast and Past ContinuousPast ContinuousPresent TensesSimple Present Tense/be/Present ProgessiveOther quiz:
Tenses › ViewAt eight o’clock yesterday, Harris _____ for the exam.
A. is studying
B. studies
C. studied
D. was studying
Adverb Clauses › View
__________ he studies, he won’t improve his grades.
A. If
B. After
C. Unless
D. Because
Prepositions after Verbs and Adjective › ViewUnfortunately, I’m very bad____ music.
A. for
B. of
C. at
D. in
Idioms › View
If you are “quaking in your boots”, you are ___.
a. brave
b. afraid
c. confident