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Thank you for checking the following passage. Sorry for omitting the end…
Last week, almost in secrecy, Director General of International Atomic Energy Agency (IAEA), Yukiya Amano, visited Israel. This was the Japanese diplomat's first visit to Israel since he took the post six months earlier. Amano's predecessor, the Egyptian scientist Mohamed ElBaradei, has also visited Israel during his long tenure as head of IAEA, but his visits numbered just two altogether throughout his 12 years in post, and only one of them has been public. By the way, ElBaradei is completely immersed nowadays, in the electoral campaign for presidency, contending against incumbent president, Hosni Mubarak. It is quite certain that ElBaradei's chances to overcome either Hosni Mubarak or his son, Jamal Mubarak, are tantamount to zero and in any case – much lower than the slight chance of the international community to succeed in peacefully persuading…
One more the, before post, in the 5th line.
Amano's predecessor, the Egyptian scientist Mohamed El Baradei, also visited Israel during his long tenure as head of the IAEA, but his visits numbered just two throughout his 12 years in the post, and only one of them was made public.
Could the use of the past perfect in this sentence be optional? (The action comes here in the past before Amano's visit to Israel which is also in the past).
I can't see a past perfect in it, and wouldn't change any into it.