You’ve done much of the work, and please leave ______ to us.
| A．the rest | B．the other | C．another | D．the others |
Aborigines' most common tool in Australia is ________ boomerang, which is used to kill ________ animals.
| A．the;/ | B．/;/ | C．the; the | D．/;the |
There is no doubt, in my opinion,_______ matters is not the speed, but the quality of the product.
| A．what what | B．that that | C．that if | D．that what |
_______,but it is also a great way to lower the number of greenhouse gases in the air.
| A．Not only a fun thing is it to do |
| B．Not only a fun thing to do it is |
| C．Not only it is a fun thing to do |
| D．Not only is it a fun thing to do |
Zheng He started to sail in 1045 to “Western Seas”. In the following 28 years, he made _______ successful travels.
| A．other six | B．more six | C．six another | D．another six |
When _______ to our school, the new study methods are popular with all the students.
| A．to introduce | B．introduced |
| C．introducing | D．to be introduced |