He found _____ not easy to learn a foreign language well.
—Dad, I've finished my assignment. —Good, and________you play or watch TV, you mustn't disturb me.
When I told him to make an apology, he________his eyebrows and said,“Apologize? Why?”
You will succeed in the end________you give up halfway.
The WTO cannot live up to its name________it does not include a country that is home to one fifth of mankind.
I was advised to arrange for insurance________I needed medical treatment.