Raya: Have you heard that Chaca is sick?

Chaca: Not yet. I think we ... him.

Raya: That's a good idea, but I can't visit him today.

• must

• must not

• have to

• shouldn't

• should

It's not obligatory to wear a tie. So, you ... wear one.

• don't have to

• doesn't have to

• have to

• must

• mustn't

You ... do your homework on Saturday morning. That way, you'll have the rest of the weekend free.

• don't have to

• should

• shouldn't

• mustn't

• doesn't have to

Huft, tomorrow is Monday. I ... wake up early in order that I don't come late.

• mustn't

• has to

• must

• should

• have to

Covid-19 is not over. So, ...

• You have to wear a mask

• You have to clean your face

• You must shut up your mouth

• You must smile on your mask

• You must not wear a mask

If you heat the ice, . . . .

Complete the sentence above!

• it melts

• it freezes

• it evaporates

• it disappears

• it burns

if you study hard, . . . .

Complete the sentence above!

• you will pass the exam

• you will get punishment

• you will get bad score

• you will be ashamed

• you will be lazy

If we had a yacht, . . . .

Complete the sentence above!

• we would sail the seven seas

• we would learn karate

• we would go picnic

• we would watch a movie

• we would make a garage

Type 0 : if you heat water to 100 degrees, . . . .

Which clause is appropriate to complete the sentence above?

• it boils

• it will boil

• it would boil

• it would have boiled

• it is boiled

Type 2 : If I were a president, . . . .

Which clause is appropriate to complete the sentence above?

• I would lower the tax

• I will lower the tax

• I lower the tax

• I am lowering the tax

• I lowered the tax