—______ do you write to your pen friend?—Once a week.A. How long B. How soon C. How often
I don't know ______ next time.
If you want to know how a word is used,you can ______ it ______ in a dictionary.
—What are you doing now,Jim? —I'm surfing the Internet.I want to find ______ on it.
—Sorry,but I didn't quite catch what you said.Would you please ______ your email address? —OK.It's andy 19840313@126.com.
The box is ______ heavy for the child ______ carry.