Is that Mr. Wang speaking?—Sorry. He isn’t at home. He ________ abroad for a trip.
It is helpful to a good habit of reading in language learning.
What does Mrs Li teach?—She is ________ English teacher, and she teaches __________ English very well.
Could you tell me? — Certainly. In 20 minutes.
_____ do you telephone your parents? — Once a week, at least. [ ]