You don't feel confident speaking english... Just look 5 ways to boost your confidence:
1-practise,practise every day;
2-stay calm and speak slowly;
3-practice speaking with native speaker videos;
4-Reward yourself and recognise your achievement....;
5-Read texts out loud.

Our neighbor's children....................... loudly
a. Speaks
b. Speaker
C. Speaking
D. Speakers

English Debats
Most of us Know the language because we learned seen grad 6, I mean primary school, what had happened is that we don't practice it. We learn and speak any language when we practice the by speaking with anyone.
Language is practice, is dialogue, is speak - talk.
We face lot of difficult in Mozambique, not to learn but to speak all strange language, in this case english because we do not speak, we are just boxes that receive things without reaction - some time because we do not have people around that speak the language but most of the time because we are shy and in the highest way because we are afraid to fail...

This idea of Debats in English will be the property way of upgrade, improve your English speaking and writing.

ABS: Do not be afraid to ask for clarifications when you do not understand and you are in doubt.