26. They got married 30 years ago and never ______ in the past years.
| A．they didn’t quarrel | B．they have quarreled |
| C．did they quarrel | D．have they quarreled |
The WTO urged that all the countries ________ measures to prevent swine flu spreading.
| A．take | B．must take | C．are to take | D．took |
Frank put the medicine in a top drawer to make sure it would not be ______ to the kids.
| A．accessible | B．relative | C．acceptable | D．sensitive |
Nowadays people sometimes separate their waste to make it easier for it _______.
| A．reusing | B．to reuse | C．to be reused | D．reused |
Life is like a long race ________ we compete with others to go beyond ourselves.
| A．why | B．what | C．that | D．where |
You must be ________ that what you are doing is quite illegal.
| A．aware | B．confident | C．awful | D．magnificent |