Language learning vocabulary

I've been having trouble getting __ _____ ____ learning new vocabulary.

(to make an effort to understand and deal with a problem or situation)

I have to _____ __ __ my presentation skills. I have a meeting with some investors next week.

(to improve your knowledge of something already learned but partly forgotten)

I really ________ ____ listening and reading at this level, I find them really complicated.

(to experience difficulty and make a very great effort in order to do something)

My son has an ___ ___ music. He can play any song just by listening to it once or twice.

(being good at hearing, repeating, and understanding sounds)

Small children usually _______ language, they don't go to school to learn how to speak.

(to get or obtain something)

After years of study I can now ____ a conversation with a native speaker in English.

(to have something or to control something)

At this point, I am already __________ __ taking online English lessons.

(being familiar with something)

I know studying and working can be exhausting, but I need to ____ __ __ if I want to achieve my goals this year.

(to continue to do or work on something)

I've been working really hard to ______ a better position at my job.

(to reach or succeed in getting something)

I immediately ___ ____ practice the new vocabulary I learned and I can already remember a lot of it.

(to spend a lot of time or effort doing something)