To improve people's living environment, considerably cutting carbon emissions has become something（）the leadership must achieve as soon as possible.
The singer receives an occasional letter from the young fan （）he has set a good example.
I don’t think anything（ ）a critic ever says is worthy of consideration.
Fill in the blanks with an item as required.
With a relative pronoun or a relative adverb: Nobody knew the reasonshe quit her job in top management and rumors were spreading about it.
With a relative pronoun or relative adverb.Scientists are sure that the time will comeman can fly wherever he likes in the universe.
Fill in the blanks with the appropriate words given in the group.
which, what, that, nobody, anybody, none The old fur trader trapped some animals of of us had ever heard before.
Fill in the blanks with the words given in brackets. Make changes or add something where necessary.
The project(which) they have been working for two years is a total failure.
Ann returned the book（ ）I bought at a bookstore to the library by mistake.
No one（）has ever visited the town will fail to be impressed by its beauty.
The new plan is aimed at solving the issues（ ）the system has been suffering.
With an appropriate relative pronoun or relative adverb: The young womansmall convenience store has just been closed down is going to open an online shop soon.
With an appropriate conjunctive:
After the initial failure, they were faced with the problemthey should continue the experiment or not.
Experts hope the methods will lead to a crackdown on wildlife crime in two main hotspots in Africathe vast majority of the killings.
The delivery of public servicesto be a new areawe decorate an out-of-date process with technology in a different way.
The air then passes to a compressor, it is compressed, and from it is delivered to the combustion chambers.
Since a staple of immigrant communities in big citieslong, restaurantsdiners chop, grill, boil or dip their food are hot in the American heartland.
Fill in the blanks with one of the items given below:
Once children go to school, they are entering a wider communityteachers and peers will have just as much influence as their parentsat home.
With a relative pronoun or relative adverb: I will never forget the restaurant in LondonI met the girl who later became my wife.
For more than 500 years the dream of gold has attracted people to this place in Peru. The firstthe Inca, then the Spanish,search for gold and silver led them to take over the New World.
It is not known when ancient civilizations found out how to use the cacao's seeds. Itby accidentthe beans fell into a fire and roasted, releasing a chocolate-like smell.
she quit her job in top management and rumors were spreading about it.