Complete the sentences with the correct forms of the verbs.
1. If you (speak) very fast, they (not understand) you.
2. If Marco (phone) tonight, ____ you ____ (tell) him I'am at Sabina's house.
3. Your parents (not know) if you (not tell) them.
B. Complete the sentences with the correct form of the present perfect simple
A:Would you like some chocolate?
B:No, thanks. I (already have) some.
2. _____ you _____ (buy) your sister a present yet?
3. We (already finish) our homework.
4.____Marta ____ (see) the film yet?