In America, ______ car is ______ popular means of transportation.
| A．the; a | B．a; the | C．the; the | D．the; / |
______ from the moon, the earth looks like a beautiful blue planet.
| A．Seeing | B．Seen | C．To see | D．See |
___we do this today or tomorrow doesn’t make much difference.
| A．When | B．Whenever | C．Whether | D．If |
—Do you think I should wear a thick coat?
—Yes, certainly. ______, you also need a compass.
| A．What’s more | B．In other words | C．Keep in touch | D．On the contrary |
Only when he arrived home _____ that he had left his key in the office.
| A．will he realize | B．he did realize | C．did he realize | D．should he realize |
He raised his voice in order to make himself ________ by all the people present.
| A．hear | B．hearing | C．to hear | D．heard |