You________have finished your composition.— I had meant to, but before I could, the bell rang and we had to hand in our test papers [ ]

_____ from the space, you will find the earth is blue. [ ]

cientist spent years alone in the forest, ______ by eating wild fruit and small animals.

Theprofessor in the letter is from Shanghai

My English-Chinese dictionary has disappeared. Who _________ have taken it?[ ]