(1) I saw a man came out of the building at the time. → come / coming
(2) This morning I heard Takumi spoke English fluently on his cell phone.
→ speaking / speak
(3) What let you decide to come to Japan? → made
(4) I had my bus pass renew today. → renewed
(5) An internship helps you with gaining practical experience.
→ (to) gain
（解答）Samantha was very embarrassed to be seen to cry [to be seen crying] (loudly / a lot / bitterly) in front of others.
（別解）Samantha was very embarrassed when she was seen to cry.
（解答）These days [Nowadays], you seldom [rarely / hardly ever] see children playing [play] on [in] the streets or in the parks.
（別解）These days, it is unusual to see children playing in the streets and the parks.
（解答）Charlie Chaplin was a genius of comedy, so he could easily make his audience laugh [make his audience keep on laughing] fo hours (on end).
（別解）Charlie Chaplin could easily keep his audience laughing (for a long time), because he was a comic genius.
（解答）I believe [think] (that) exchanging [sharing your] (feeling and) opinions about interesting books or movies with friends make them (even) more impressive.
（別解）I believe (that) interesting books or films become more impressive when you share your opinions about them with friends.
（解答）When I was a child, my parents helped me (get) through difficult times.（別解）In my childhood, my parents helped me cope with the problems I faced (at that time).
（解答）Taking notes of [at / on] lectures will help you (to) remember [recall] later [afterwards] what the lecture says [said].
（別解）If you take notes during the class, they will help you remember what the teacher said.
（解答）You can practice speaking English [improve your English] at home without having to go abroad [overseas / to foregin countries] by taking [chatting] with native English speakers [native speakers of English / people whose mother tongue is English] on the Internet [on line].
（別解）The Internet enables us to practice speaking English at home with native speakers without studying in countries where English is spoken.
（解答）All [In] overseas tourist destinations, you [we] often see Japanese tourists taking pictures [photos / photographs] of each other all the time [eveywhere].
（別解）In tourist areas [resorts] abroad [overseas], you often see Japanese (people) doing nothing but take pictures of each other.
（解答）These days [Nowadays / Today], you [we] see young people looking at the screen of their smartphone while walking along the streets or going up and down (the) stairs.
（別解）These days, young people are seen walking down the streets or going up and down stairs, using their smartphones.
（解答）Parents can make their children sit at their desk, but it is up to them whether they really study or not.
（別解）It is easy for parents to make their children sit at their desk, but it is up to them whether they really study or not.