First conditional - exercícios para ensino médio com respostas

LEIA TAMBÉM:
FIRST CONDITIONAL - grammar exercise with keys

Escreva frases colocando os verbos entre parênteses no present simple ou future simple.

Exemplos
If the train is late, we (walk).
If the train is late, we will walk.

She (call) you if she (have) time.
She'll call you if she has time.

a) If it costs too much, I (buy) a smaller one.
b) If the doctor can't see me, I (go) somewhere else.
c) If the class (be) full, we (find) another one.
d) What will we do if the taxi (not come)?
e) Will you phone me if there (be) any problems?
f) I (ask) Peter if I (see) him tomorrow.
g) I (go) next week if I (can) get a train ticket.
h) If I (have) to, I (complain) to the manager.
i) If he (see) me here, he (be) really angry.
j) Mary (be) worried if you don't come to the airport.
k) If it (snow) this winter, we (go) skiing.
l) I (lend) them some money if they (ask) me.
m) If you (visit) Oxford, you (see) some interesting old buildings.


RESPOSTAS

a) If it costs too much, I'll buy a smaller one.
b) If the doctor can't see me, I'll go somewhere else.
c) If the class is full, we'll find another one.
d) What will we do if the taxi doesn't come?
e) Will you phone me if there are any problems?
f) I'll ask Peter if I see him tomorrow.
g) I'll go next week if I can get a train ticket.
h) If I have to, I'll complain to the manager.
i) If he sees me here, he'll be really angry.
j) Mary will be worried if you don't come to the airport.
k) If it snows this winter, we'll go skiing.
l) I'll lend them some money if they ask me.
m) If you visit Oxford, you'll see some interesting old buildings.