If mother doesn’t cook,we(have)…..dinner in a restaurant

Artinya = Jika Ibu tidak bisa memasak, kita (harus) makan di restoran.

Jawaban = If mother doesn't cook, we (must) dinner in a restaurant
Jadi (have) diganti menjadi (must)..

Good luck!

If mother doesn't cook we had dinner in a restaurants.