Change these sentences into negative and introgative!!
A.there have been many earthquakes in indonesia
B.the mechanic repaired three cars last week
C.i have had four quizzes and five test so far this semester
D.i and my family spent our holidays in singapore.
E.i think i have met him once before
F.she got a poor grade in english test last semester
G.nobody has ever climbed that mountain
D.they spent their weekend on the beach last sunday