They (meet)_____are meeting_____their teacher at the moment.
We (visit) ___are visiting_________the museum at the moment.
John (not read)_____isn' reading___a book now.
What _will______you(do)___do___tonight?

They (meet)___are meeting_______their teacher at the moment.
We (visit) ____are visiting________the museum at the moment.
John (not read)___isn't reading_____a book now.
What _will______you(do)___do___tonight?
Giải thích : Câu 1,2,3 là tì hiện tại tiếp diễn ( now , at the moment)
Cấu trúc : S+am/is/are+V-ing
Câu 4 là thì tương lai đơn ( tonight)
Cấu trúc : S + will + V(bare)....

ở câu thứ 3 : là isn't (ko phải isn')

They are meeting their teacher at the moment.
We are visting the museum at the moment.
John isn not reading a book now.
What will you do tonight?