Each member country of WTO must ______ its laws and regulations and compete on the principle of fairness and co-operation.
| A．cater to | B．correspond to | C．relate to | D．submit to |
30. After he had recovered from his injury, he caught a squirrel (松鼠) and raised it as a pet. Soon he ______ home snakes and other creatures from the woods near his school.
| A．was bringing | B．is bringing | C．has brought | D．had brought |
29. Realizing ______ I had been able to accomplish, my fears of failure grew rapidly.
| A．so little | B．such little | C．how little | D．what little |
28. In Australia’s New South Wales, a group of animals are at risk of losing their home with a new logging program soon ______.
| A．starts | B．to start | C．starting | D．Started |
27. In the west-central region lived the Welsh, who spoke a Celtic language, and in the north lived the Scots, whose language, ______ not the same as Welsh, was also Celtic.
| A．though | B．unless | C．if | D．as if |
26. In the book, Newton is shown as a gifted scientist with very human weaknesses who stood at the point in history ______ magic ended and science began.
| A．what | B．which | C．that | D．Where |