From the ________ shown in the dead body, he ________to death by a certain poisonous chemical, but I can’t tell exactly which. [ ]

He kept yawning in class this morning. That is _____ he stayed up late doing his homework last night.

_______ many of us today take the television for granted, it’s actually one of the greatest invention of the 20th century.

By improving reading skills, you can read faster and understand more ofyou read

We ____ here two hours ago . We____here for two hours .