They work hard, but their efforts are not very __________.
A: concentrate
B: productive
C: enrolled
D: schedule
A: concentrate
B: productive
C: enrolled
D: schedule
举一反三
- I live in the school's _______. It is very cheap and convenient. (assignment; productive; due date; skip; enrolled; concentrate; grades; schedule; dormitory; semester)
- They work hard, but their efforts are not very __________.
- They work hard, but their efforts are not very _________ (product).
- I never ______ class. I think it's important to go to every class.(assignment; productive; due date; skip; enrolled; concentrate; grades; schedule; dormitory; semester)
- to work very hard