[ To Infinitive/Bare Infinitive/Gerunds ]
I’m sure that he knows ————– this new machine.
A. to use
B. using
C. how using
D. how to use
Random Topics:
Present Perfect Simple & ContinuousSimple Past ContinuosCountable & Noncountable NounsPresent Perfect and Past TensesNarrative, Past TensesConditional and Mix Conditional SentenceAdverb and Noun ClausesGrammar: Defining Relative ClausesGrammar, Conditional Sentences, VocabularyComparative - SuperlativeOther quiz:
Phrasal Verb › ViewWhat does “stay ahead” mean?
A. Move ahead of others
B. Stop doing something
C. Start a new plan
D. Succeed after hard work
Relative Clauses › View
Children ________eat a lot of candy often get bad teeth.
A. who
B. which
C. where
D. This
Sentence Structure and Conjunctions › ViewWhat is the subordinating conjunction?
We had fun while we were at the park.
A. while
B. fun
C. at
D. were
Grammar › View
Alexander _____ taking his driver’s test next week.
A. is
B. are
C. will
D. was