Find and correct the mistakes. I am trying to learn English for years.

Choose the correct option to fill in the blank of the sentence: _______you ever ________ raw fish before?

Give the correct form of the verbs in the present perfect. They (stay) ............... here since last week.

Fill in the blank with “for” or “since”. My brother works for a company called FPT. He has worked for them ...................... he graduated from university.

Translate into English. Đây là lần đầu tiên tôi ăn món ăn Trung Quốc.

Translate into English. Nga vừa ra ngoài đúng không?