Giúp mik giải nha , hứa ctlhn

1. Ba can't buy this dictionary since he doesn't have enough money.

→ If Ba has enough money, he can buy this dictionary.

2. Hien is busy, so she can't come to attend the party today.

→ If Hien isn't buys, she can come to attand the party today.

3. I can't phone her because I don't know her phone number.

→ If I know her phone number, I can phone her.