TOEFL consists of four sections: reading, listening, speaking, and writing. Full TOEFL iBT test takes about 4 hours. Free practice test takes about 2 hours. Each section contains multiple practice questions
Tongue twisters are challenging combinations of similar-sounding words. They use challenging sounds in pairs of two or three. They rely on alliteration and unusual word combinations
The phrase "grinning like a Cheshire cat" first appeared in 1788 in Grose's dictionary. The origin of the phrase remains debated, with theories linking it to Cheshire dairy farms. Some suggest Carroll based the character on his mentor Edward Bouverie Pusey
Retard originated from Latin verb retardare meaning 'to hinder'. Term became medical term for children with intellectual disabilities in late 19th century. Moron, idiot, cretin, and imbecile were non-offensive alternatives until 1960s
American and British English exclamation used for encouragement or compliment. Can express surprise, mild annoyance or disappointment. Defined as euphemism for "son of a bitch" in American English
"你好吗?" (nǐ hǎo ma?) is the most common greeting, but rarely used by natives. "您好吗?" (nín hǎo ma?) is more formal and used with elders. "你最近好吗?" (nǐ zuìjìn hǎo ma?) is the most natural version