Определите время в каждом из предложений:

a) Have you been working hard today?
b) Have you heard about Tom?
e) You are working hard today.
d) Is your English getting better? e) How often do you go to the
dentist?
f) What does this word mean?
g) Miranda has been to 31 different countries.
h) How long have you been learning Russian?
i) We haven't seen her today.

Варианты ответа:

1. the Present Simple Tense
2. the Present Continuous Tense
3. the Present Perfect Tense
4. the Present Perfect Continuous Tense​