Fill in the gaps with on, off, or with

Have you ever been in a building when the fire alarm went . ? What did you do?

He went . and . talking and I was so bored.

They asked me how the project was going . .

Does this tie go . my shirt?

What is going . in China right now?

Go . ! I could listen to you sing all day.

everyone at least once in a life passed some kind of exam. should we worry about the results of the exam after we did that? at first glance, an answer to this question seems to be a piece of cake. but people actually split down in the middle with no clear confidence. being in the dark about our mark makes us feeling nervous. some people even become down in the dumps, i mean, they fall into depression bothering themselves. they even may understand that it doesn’t make any sense but they commonly can’t help it. but there is a category of people that can manage to not let their hairs down. they stay still whatever they do, particularly, sit in for a test.

to conclude, i don’t want to beat around the bush, that’s why will tell you my clear viewpoint. i also think that feeling nervous while waiting for exam results doesn’t add up.

the republic of belarus is situated in the center of europe on the watershed of the baltic and black seas. the capital is minsk. belarus borders on poland, lithuania, latvia, russia and ukraine. the total length of the state border makes up 2,969 km. geographic and climatic conditions favor the development of transport and economic relations. the shortest ways from russia to western europe and from the baltic sea to the black sea run through belarus.

the territory of belarus is 207.6 thousand sq km. it stretches from west to east for 650 km and from north to south for 560 km.

africa -  africanindia -  indiantropic - tropical

1. you should  try to find out as many facts as possible about this expedition to the antarctic. 2. the team of experts is to analyze the present situation connected with our city's ecological problems. 3. the young engineer was allowed to apply the mobile equipment in his field experiments. 4. this production process had to be further improved by new technical means. 

1. вы должны попытаться узнать так много фактов насколько возможно об этой экспедиции в антарктику. 2. команда экспертов должна проанализировать текущую ситуацию, связанную с экологическими проблемами нашего города. 3. молодому инженеру разрешили применить мобильное оборудование в его полевых экспериментах. 4. этот производственный процесс должен был быть далее улучшен новыми техническими средствами. 

вроде правильно, но не уверена, а перевод