Students
>
New English File
>
Beginner
>
Grammar
>
File 4
Grammar
Help
Practical English
Pronunciation
Vocabulary
→
Choose . . .
File 1
File 2
File 3
File 4
File 5
File 6
File 7
and
Choose . . .
→
Grammar File 4
Choose a file and an exercise above, or choose an exercise below.
4A adverbs of frequency, present simple
4B word order in question words, question words
4C can / can't (permission and possibility)