Выбери правильный ответ: 1. david has five (fishes/ a fish/ fish) at home. 2. tim will buy (this/these/those) pizza. 3. she (know/ is knowing/ knows) their address. 4. he (helps/ help/ doesn't helps) his parents. 5. (this/these) books are more expensive than (that/those) books. 6. (he/we) always helps (her/she) to do the task.