------What's the matter with Tim? ------Oh, Tim's cell phone was left in a taxi accidentally, never ________ again.
The farmer used wood to build a houseto store grain.
According to the periodic table,still some elements undiscovered.
Calculations, which are astronomically exact, have been madewith the use of computers.
The man deniedany thing at the supermarket when he was questioned by the police.
“Do you thinkI should attend the lecture?” she asked me.