_______ on time, this medicine will be quite effective.
| A．Taking | B．Being taken |
| C．Taken | D．Having taken |
20. ----_____ either she or I fit for the job?
----I’m sorry to tell you that neither she nor you _____.
| A．Is; are | B．Are; are | C．Am; is | D．Is; is |
19. After discussion, we all think it’s an idea that’s worth _____.
| A．considering | B．to consider | C．to be considered | D．of considering |
18. Believe me, nobody can _____ you in this company.
| A．take place | B．take the place | C．take the place of | D．replace of |
17. By this time next summer, you _____ a high paying job. But I will still be studying.
| A．will find | B．are found | C．have found | D．will have found |
16. ----It’s getting dark, but Mr. Johnson is still at his office.
----No surprise. Who else can _____ he does?
| A．do less work than | B．work as hardly as |
| C．work as hard as | D．be working hardly like |