A．Because Morocco repatriated those who wanted to enter Spain.
B．Because Morocco allowed the would-be migrants to enter Europe.
C．Because Moroccan troops killed several would-be migrants.
D．Because Moroccan security forces treated the would-be migrants cruelly.

A．Demonstrations took place against the treatment of would-be migrants.
B．The would-be migrants tried to enter the two places.
C．A few people were killed in clashes with Moroccan troops.
D．Sub-Saharan Africans waited to cross illegally into the two places.

A．Tehran's view on its own nuclear weapons.
B．the debate on Iran's nuclear weapons.
C．the idea of the U.S. and Europe about Iran.
D．the experts' disagreement on nuclear weapons.