1. It was late. I go home. had to
must

2. It is a serious meeting. You be early.

must
had to

a bag-[bag]сумкаa bar(of chocolate)-[ba: ]плитка (шоколада)a boot-[bu: t]ботинокa bottle-[botl]бутылкаchess-шахматыa cucumber-огурецa cup-[k^p]чашкаa dress-[dres]платьеa glass-стаканa t-shirt-футболкаa jacket-курткаjuice-сокa kilo-килограммa litre-литрa loaf(of bread)-ломоть(хлеба)lunch-обедa mitten-рукавица  an orange-апельсинa piece(of caka)-кусок тортаa raincoat-плащa scarf-шарфa slice(of meat)-кусок мясаa suit-искa tin-жестяная банкаtrousers-брюкиa vegetable-овощan umbrella-зонтto have on-иметь наto wear-носитьsome-немного(+)any- ? )no-нет

my younger brother had his birthday on sunday. i proposed to arrange  a birhday party/picnic for him and his friends. "not a bad idea! said my parents.we decided to spend  a weekend in the country. i was responsible  for the social programme.we played funny games and sports, sang songs,danced and took pictures.my brother and his friends enjoyed      the  picnic."that was great",he said and kissed me.

                  next year we are going to arrange a birthday picnic for my brother and his friends again.

остальные слова вставлять не требуется. по в - они не относятся к этому тексту.

в новогодний вечер мы собрались всей семьёй. наша семья готовилась к рождеству. каждый приготовил подарок и подарки лежали под рождественской елью. наша семья села за стол, поели вкусные блюда. потом мы пели песни и танцевали под музыку. счастливое рождество прекрасно.

n thenew yearwe have gatheredthe whole family.our family isgetting ready forchristmas.eachprepared agiftandgiftswereunder the christmasspruce.our familysat at the table, atedelicious food.thenwe sang songsanddanced to the music.happychristmasperfectly.

i don't know whether 'li' means 'whether' here or 'if'. i suggestwhether/if: the brother/ my brother is watching tv now, he is playing on the computergrandmother is sleeping

mum is making lunchgrandad is watching tvdad is reading

kate is playing the pianomy brother is listening to musicrex is sitting next to him/ it