这里能用because吗?We are looking forward to the Olympic Games,___a___ they .7 We are looking forward to the Olympic Games,___a___ they have never been held before in this country.a.for \x05b.why \x05\x05c.because of \x05\x05d.due to如题：a处

x���N�@�_�<�)n���.]�1!�v���6-�3@��r������b����^��Wph�`t#1n\���9s��̗aհ;���L77��9̣��I�<��
i⊲/�{S��H*�1lǍ�*�X_�F��ƴb� +��(�A�i�
��"�tG0H2�#��+)9�bhv�78&#�n<3{(�ER`�����׬M�:"�y��B��|_���^+��;?�����;�C�wq��Q�<��j֏g�=N�诏��U_I�@�-ҩ�j!†�0��!)[N�5��}9rj�B���r��^�V1h��Hq r-U�2lHW���e���eb�ԇ��\�xP#v�X6)ݐ��q�͵:N�D��U���фӻ��w�����