Question

Use SHOULD ou MUST/HAVE TO para completar as frases a seguir When we are at school we ___________ wear a uniform. You________be an expert to use the basic functions of program. You__________ tell her that you are sorry. We _________ go to the meeting. Why will not you go? He___________wear glasses, because he can't see perfectly well. We will go to bed right after dinner because we __________get up early tomorrow. We______________go for a drink one day. You____________ take any money. It isn't necessary. Go home ! You _________be here! We___________ talk to each other because it is a test

Answer 1

When we are at school we have to wear a uniform.

You must be an expert to use the basic functions of program.

You should tell her that you are sorry.

We have to go to the meeting. Why will not you go?

He should wear glasses, because he can't see perfectly well.

We will go to bed right after dinner because we must get up early tomorrow.

We should go for a drink one day.

You don't have to take any money. It isn't necessary.

Go home! You shouldn't be here!

We mustn't talk to each other because it is a test.

Explicação:

Should

O verbo should é um modal verb (verbo modal) que significa deve ou deveria. O verbo modal should é utilizado para expressar conselho, sugestão, expectativa, probabilidade e dever.

Exemplos:

She should not go out late at night. (Ela não deveria sair sozinha tarde da noite.) – CONSELHO

You should arrive early at the airport. (Você deve chegar cedo ao aeroporto.) – SUGESTÃO

He should get home in a few minutes. (Ele deve chegar em casa em alguns minutos.) – EXPECTATIVA

I should arrive in 5 minutes. (Eu devo chegar em 5 minutos.) - PROBABILIDADE

We should fasten our seatbealts. (Nós devemos colocar o cinto de segurança.) – DEVER

Must x have to

Must e have to expressam uma obrigação, uma necessidade, mas existem pequenas diferenças:

Must expressa os sentimentos do locutor, enquanto have to expressa, sobretudo, uma ideia impessoal:

You must come. Você tem que vir. (pedido feito pelo locutor)

You have to come. Você tem que vir. (é um regulamento)

Must I wear this tie? Eu deveria usar esta gravata? (O que vocês acham?)

Do I have to wear this tie? Devo usar esta gravata? (O regulamento exige?)

Have to expressa, principalmente, obrigações comuns ou normais, enquanto must é usado para as obrigações específicas:

I have to brush my teeth twice a day. Tenho que escovar os dentes duas vezes por dia.

I must tell you something. Devo lhe contar algo.