Course contributors NEED to fix bad sentences
I love this course, but unfortunately after getting through the first 20% of it, it is littered with bad sentences, weird and unexplained grammar, and crappy sentence acceptances. Take for example, this sentence:
"when it is cloudy, i like to read books at home" would not be accepted, while "when it is cloudy, i like reading books"
It also slaps you on the wrist for slightly different yet completely legal ENGLISH sentence structure!
"Yesterday it was sunny in Beijing" would not be accepted while "It was sunny in Beijing yesterday" would be.
Please fix this!