It was _______pleasant surprise for the mother to see her son ____had been missing for nearly ten years that she didn’t know what to say.
---Do you think the last problem in this math test difficult? ---Yes. I could work it out.
---I’m going to take part in the piano competition next week. --- _____
---Why haven’t you asked her to come here? ---She _______ an important experiment when I found her and she _____ it.
Because of the heavy traffic, it was already time for lunch break she got to her office.
---How do you find the talk given by Mr. Smith? ---_________.