Their new helper is very ______________.
举一反三
- The old road （） A: was very busy though there was a new motorway B: was never very busy C: was always very busy and dangerous D: was very busy and dangerous before the construction of the new motorway
- The new smart ( )could be very expensive
- It is very important for students to understand and ________ new
- My new job is very ________ (tired / tiring)
- This new model is very popular with young people.