[ Grammar & Vocabulary ]
Marco ……………………… this exercise.
A. aren´t understand
B. doesn´t understand
C. isn’t understanding

Random Topics:
Tenses: Present simple, Past Simple, Future SimpleModal Verbs of Deduction and SpeculationGerunds in SentencesDeterminers & QuantifiersModals and Past TensesPhrasal VerbToeic VerbPast SimplePassive of Modal VerbsIrregular verbsOther quiz:
Vocabulary › ViewWhat is the meaning of the word ‘ephemeral’ based on the context ‘The beauty of the cherry blossoms is ephemeral’?
A. Short-lived or temporary
B. Everlasting
C. Enduring
D. Permanent
Grammar › View
The river __________ through the valley.
A. flow
B. flows
C. is flowing
D. has flowed
Grammar › View_____the children______ the Net at weekends?
a. Do … surf
b. Are … surfing
Grammar › View
Jimmy has a high fever, and he ____ in the hospital for a week.
A. was staying
B. is staying
C. has stayed
D. stays
