We can’t continue to pretend that the problem of pollution doesn’t___________in this city.
| A．exist | B．live | C．be | D．survive |
—Why were you not at the concert last night？
— I _________a close game between Seattle Sonics and Miami Bucks.
| A．watched | B．had watched | C．was watching | D．have been watching |
___________, he would have been fired.
| A．Had he lied to the boss | B．Did he lie to the boss |
| C．If he has lied to the boss | D．If he lies to the boss |
________ be sent to work in Beijing?
| A．Do you suggest who should | B．Do you suggest whom should |
| C．Who do you suggest | D．Who do you suggest would |
Is it John that is being scolded in the manager’s office?
No. It ______ be him. I saw him on the way just now.
| A．mustn’t | B．won’t | C．can’t | D．may not |
Every means has been _______. No one is effective.
| A．trying out | B．tried out | C．trying in | D．tried on |