Before you go somewhere you need to learn about the places you going to visit. нужно найти грамматическую ошибку

Before you go somewhere you need to know about the places you are visiting.

Helen (а) is mopping the floor at the moment. the show b) features real doctors i sometimes c) borrow books from the library. sue is interested c) in helping animals. an ancient tomb a) has been discovered near mexico city. jack often a) takes c) borrows books from the library. you b) don’t have work tonight. let’s go to the cinema. my train a) leaves at 7 a.m. they say life in cities is c) more dangerous than in towns. there’s only a b) little pasta, but we’ve got some pie. i’m hungry. is there a) any soup left? the pilgrims made a long c) voyage henry carter b) discovered the lost tomb of tutankhamen. “the giant b) has stolen our sheep”, the locals cried. what c) was he doing at 8 o’clock last night? if the weather is nice, we will swim with dolphins. a) is, will swim that’s a friendly cat a) which lives next door. the seine is a river in paris. c) the, a, - how can we b) raise money for charity? the art gallery a) was opened by the president yesterday.