Dad, I’ve got an “A” in the math exam. –Great. And I’m sure you will do better, because this is a good_______.

Where _____ your pen pal _____ from ?

I called you yesterday evening, but there was no answer.–Oh, I am sorry. I __________ dinner in my friend’s home.

M r. Li is _____teacher. ______is from China.

.－Who taught _____ to swim?－I learned it by _____.