Question

Do you know where ... Mississippi River is? a) an b) the c) - He ... twenty in a month a) will be b) am going to be c) is We ... go to Peru next year. We`re not sure. a) might b) should c) probably That`s the woman ... son is an actor. a) who b) whose c) which This afternoon, we ... sandboarding. a) are going b) are going c)will I`m bored ... camping trips. Let`s go on a safari. a) from b) of c) for Перед вами такое упражнение, похожее на викторину. Ответы я знаю, поэтому в этом задание не заключается. Тут вы должны проявить свои знания и написать, объяснить мне почему тут именно этот вариант ответа. Это ОЧЕНЬ НУЖНО, и ОБЪЯСНЯЙТЕ, пожалуйста, ПОНЯТНО. Заранее всем спасибо!

Answer 1

Do you know where the Mississippi River is?
THE is the definite article.   when you have ONE of something that is definite, you use THE.  there is only one mississippi river, so you must use 'the'.

'an' is an indefinite article, not appropriate. if you have one of something thats not specific such as 'an apple'. 

He will be twenty in a month.
'in a month' says this is in the future, so you need a future tense verb
'am' goes with 'I' always  (I am ...)
'is' is present tense, but you could say 'he is going to be twenty in a month'

We might go to Peru next year.  We're not sure.
'not sure' means it may not happen. 'might' is also uncertain
so 'should' means we need to do something

that's the woman whose son is an actor.
i am not sure why, just that this one is correct

This afternoon, we are going sandboarding
a) and b) are the same answer
'this afternoon' means future tense
'going to' states a plan or intention, where 'will' is used in a different sense, as in a promise or request for help

i'm bored of camping trips.  let's go on a safari
'for' is definitely wrong
i have heard 'from' used, but i suspect it is not proper grammar

извините за все английский, мой руский не достаточно хорошо.

Answer 2

The Mississippi River is b) the river that you are referring to. The definite article "the" is used before the name of a specific river, such as the Mississippi River. It helps to identify a particular river among others. In this case, "the" is used because we are talking about a specific river, the Mississippi River, which is well-known and easily identifiable.

Here is a search snippet that supports this answer:

- "The Mississippi River is the second-longest river and chief river of the second-largest drainage system on the North American continent, second only to the Hudson Bay drainage system." [[1]]

Let me know if there's anything else I can help you with!