—Hi, Bob, are you going to attend tomorrow’s conference?
—Oh, I’m afraid not, invited to.
| A．even if | B．as if | C．if | D．since |
It is acknowledged that _______ shortest distance between persons is _______ sincere smile.
| A．a; the | B．the; / | C．a; / | D．the; a |
Mark often attempts to escape _______ whenever he breaks traffic regulations.
| A．having been fined | B．being fined |
| C．to have been fined | D．to be fined |
Read the ______ carefully before you do the test.
| A．directions | B．explanations | C．situations | D．occupations |
In the last few years thousands of films __________ all over the world.
| A．have produced | B．have been produced |
| C．are producing | D．are being produced |
We regret __________ you that we have offered the job to someone else.
| A．tell | B．telling | C．told | D．to tell |