Paper produced every year is the world’s production of vehicles.
| A．the three times | B．three times the weight of |
| C．as three times heavy as | D．three times as heavier as |
Bob is determined to get a seat for the concert _______ it means standing in line all night for the ticket.
| A．so that | B．as if | C．even though | D．however |
As is known to all language learners, the newly learnt words will soon be forgotten unless______ used in everyday communication.
| A．gradually | B．loosely | C．exactly | D．frequently |
The woman, when ______ how her husband was injured, began to cry.
| A．ask | B．to ask | C．asking | D．asked |
I am afraid something terrible has _______. I won’t be able to see you tonight.
| A．set down | B．gone through | C．come up | D．got along |
---Let’s discuss the questions raised last night, shall we?
---There is no hurry for that. I_________ for a conference.
| A．headed | B．am heading | C．was heading | D．have headed |