Make tag questions of these statements:

(a) Life is very uncertain on earth —?

(b) Nobody knows when death comes —?

(c) But we hardly realize this truth, —?

(d) Our deeds and actions show probably we will never depart, —?

(e) We must do the well being of mankind, —?

Make tag questions to the following sentences:

(a) The beauty of a moonlit night is wonderful, ____ ?
(b) It charms us all, ____ ?
(c) How beautiful the moonlit night is, ____ ?
(d) Nobody feels bored in a moonlit night, ____ ?
(e) Even little insects fly here and there, ____ ?