Choose the best answer:
There were 79 killed and 230 ________in a bomb explosion at the embassy

Choose the best answer:
I've got to go - something has just ........ at home and I'm needed there

Choose the best answer:
The loss of biodiversity has a serious ____ on the survival of wildlife and humans

Choose the best answer:
Volunteer work helps young people know their strong and weak points before they enter the ____

Choose the best answer:
Many groups worldwide are trying to develop vaccines that protect against a wide range of coronaviruses and prevent (26) _______ pandemic. These efforts have now been boosted by the discovery that some healthcare workers had pre-existing immunity to the SARS-CoV-2 virus during the first wave of the pandemic. During the first half of 2020, around 700 healthcare workers in the UK were tested weekly as part of a crowdfunded study called Covid Sortium. Most of these people, who wore protective equipment, never tested positive for covid-19 in PCR tests or developed covid-19 antibodies – proteins that (27) _______ to the outside of viruses, preventing cells from being infected. (28)_______ , when Leo Swadling and Mala Maini at University College London and their colleagues looked more closely, they found some of those (29) _______ tested negative had a protein in their blood that is linked to covid-19 infection, as well as T cell responses to the SARS-CoV-2 virus. T cells are (30) _______ of the immune system

Choose the best answer:
If too many species ___________ out, it will upset the ecosystem

Choose the best answer:
Climate changes________ the existence of the species

Choose the best answer:
On Sunday, our family members usually __________ and enjoy a good meal

Choose the best answer:
This ticket ____ you to a free meal in our new restaurant

Choose the best answer:
The boy, along with his classmates, ______just paid me a visit

Choose the best answer:
Julia said that she ________ there at noon

Choose the best answer:
We _______ walk all the way home. We ________ take a taxi

Choose the best answer:
But everything he had intended to pass ____________ to his 19-year-old daughter

Choose the best answer:
It's easy to ____ your parents for granted 

Choose the best answer:
Last Sunday, when they__________ an exciting football match on TV, the electricity________ out

Choose the best answer:
I hope that this winter won’t be______ last year

Find which word does not belong in each group.

Choose the best answer:
What you have said is wrong,_________?

Choose the best answer:
Mary said she would .......... with us, come hell or high water

Choose the best answer:
It will be hard to say goodbye to Bill and Anne. We are______ at the airport

Choose the best answer:
Nowadays people are more aware that wildlife all over the world is in (01) _____. Many species of animals are threatened, and could easily become (02) _____ if we do not make an effort to protect them. In some cases, animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are caught (03) _____ and sold as pets. For many animals and birds the problem is that their habitat - the place where they live - is disappearing. More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them to grow better crops, but these chemicals pollute the environment and (4) _____ wildlife. The most successful animals on earth – human beings - will soon be the only ones (5) _____, unless we can solve this problem