I really can't find my pen. Where ______ it be?

根據括號要求寫出相應部分:

spy (過去分詞) ______

根據括號要求寫出相應部分:

life (復數(shù)) ______

根據括號要求寫出相應部分:

part (復數(shù)) ______

根據括號要求寫出相應部分:

cut (現(xiàn)在分詞) ______

根據括號要求寫出相應部分:

strongest (原級) ______

This mountain is high but that mountain (['mauntin] n. 山；山脈) is ______ than this one.

He studies science. He is a ______.

Beijing is becoming more and more ______ (beautifully).

Foreign visitors are ________ in our country. (interest)