--- Do you know whether scientists have ________a good way to deal with Influenza H7N9 or not?---Not yet .But they’re trying their best.
It’s fun _____ lantern riddles during the Lantern Festival.
______ disappointed she will be if she knows the result of the match!
I wonder ______ you would like to go hiking with us this weekend.
______ you read it, you can’t imagine how moving the story is.
When you don’t know a word, you can ______ in the dictionary.