44.Do/ you/ know/ what/ be/ style/ music/ strong/ and/ loud/ beat? 5 A. Do you know what a style of music with a strong and loud beat? B. Do you know what was is a style of music with a strong and loud beat? C. Do you know what are a style of music with a strong and loud beat? D. Do you know what is a style of music with a strong and loud beat? 45.He/ start/ investigate/ case/ a week/ ago// A. He started investigating the case a week ago. B. He started to be investigated the case a week ago. C. He has started investigating the case a week ago. D. He has started to investigate the case a week ago B. Choose the sentence (A, B, C or D) that is closest in meaning to the following one 46.Khoa is not old enough to join the army. A. Khoa is too young to join the army. B. Khoa is too old to join the army. C. Khoa is too young joining the army. D. Khoa needs to be young to join the army. 47.These bookshelves are my own work. A. I do these bookshelves myself. B. I making these bookshelves myself. C. I made these bookshelves myself. D. I makes these bookshelves myself. 48.This is the fastest way to get to the city center. A. There’s no faster way than this to get to the city center. B. There’s faster way than this to get to the city center. C. There’s no faster way than this getting to the city center. D. There’s no fastest way than this to get to the city center. 49.There’s no point in asking Ms. Hoa to help. A. It isn’t worth ask Ms. Hoa to help. B. It isn’t worth asking Ms. Hoa to help. C. It is worth asking Ms. Hoa to help. D. It isn’t worth asking Ms. Hoa help. 50.All the witnesses said that the accident was his fault. A. All the witnesses said that he were to blame for the accident. B. All the witnesses said that he was to blame for the accident. C. All the witnesses said that he was blame for the accident. D. All the witnesses said that he is to blame for the accident.

Xét tính chẵn, lẻ của hàm số sau: y= -x^4 + 2x^3-2

Ý nghĩa của câu: Em cầm quyển truyện trên giá để xem giá.

a) x/3=y/2 ; y/4=z/5 và -x - y +z=-10 b)x/2=y/3 ; y/7=z/5 và x+y+z=92 c) x/3=y/4 ; y/7=z/5 và 2x +3y -2=168 d) x/2 = y/5 và x.y=10

nhanh mn ơi giúp mình ạ còn 2 phút thôi

tìm m để phương trình tanx+cotx=2m có nghiệm Mọi ng giúp mk với ạ

Vt cho mk đầu bài, phần đầu thân bài của đề giới thiệu về vẻ đẹp của chị em thúy kiều bằng lời văn của mk Phần đầu bài dựa la lá như này: Vào thời Gia Tình, triều Minh, có gia đình trung lưu...

Calli:One of the simplest way to stay happy is to let go all of the things that make you sad.But I can't do it... Có tâm nha,dưới dòng đó ghi chữ Cherry (chữ này viết bình thường,khôgn calli)

Làm giúp mk câu c vs !!!! Mk cần gấp ạ

Quãng đường từ nhà bạn Minh đến trường dài 2,6km. 600m đầu tiên từ nhà ra bến xe bus Minh đi bộ với vận tốc 1m/s, quãng đường còn lại Minh đi xe bus với vận tốc 20km/h. Thời gian để Minh đi từ nhà đến trường là…….phút