23. Every Monday morning, all the teachers and students in our school stand at ____ as our national flag is raised.
It is a rule in his family that __________ comes home earlier should cook the dinner for the family.
The black horse is___________ of the pair.
I coutdn't have got to the meeting on time____________ an earlier train.
Take a taxi,___________ you'll miss your train.
________ is quite natural,a beginner can't read the books written in English very quickly.