[ 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:
Grammar › ViewThe letter is ………… typed now.
A. been
B. being
C. to being
D. to been
Grammar › View
No sooner had the teacher punished him ______________ he started being naughty again.
A. than
B. then
C. while
D. when
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