Paper produced every year is_______ the world’s production of vehicles.
| A．the three times weight of | B．three times the weight of |
| C．three times as heavier as | D．as three times heavy as |
—Have you heard from Janet recently?
—No, but I ______ her over Christmas.
| A．saw | B．will be seeing |
| C．have seen | D．have been seeing |
—I haven’t seen you for ages. Where have you been?
— I _______ on leave in Europe.
| A．have been | B．am |
| C．was | D．had been |
—Can I help you, Madam?
— No, thanks. I_______.
| A．have just looked around | B．just look around |
| C．just looked around | D．am just looking around |
—Tom came back home the day before yesterday.
— Really? Where __________ at all?
| A．had he been | B．has he been |
| C．had he gone | D．has he gone |
—Who is the old man talking with your teacher?
—I don’t know. I _________ him before.
| A．was never seeing | B．had never seen |
| C．never saw | D．wouldn’t see |