Look! There is a big bird__________the tree.[ ]

It’s clear__________ that a hard working student has___________ a great interest in science.

it is getting late,we must start at once.[ ]

What were you doing at this time last night? — I _________ a phone call.

Mr. Gao, I don’t understand the meaning of this new word. —You can __________ the word in your dictionary. I believe you can understand it well.