—— Tom, did Mr.Li join you in your dicussion?—— No, he____, but he happened to have fallen ill.
This coat will lose its color ___________ it's washed.
These students are quick at learning.We'll have them __________ with new methods.
What he lacks is more patience,___________?
I told him what I was surprised____________ his attitude towards his study.
___________ you've got a chance, you might as well make full use of it.