—This math exercise is ________ difficult ________ I can’t work it out.
—Come on! Use your head and you will find a way.
such; that
so; which
so; that
________the afternoon of June 1st, many foreigners arrived ______Beijing.
Mom, I don’t know how to work out the math problem. Could you give me a hand?
Why are you mad at me, John?
Mary told me to wait for her at the school gate, but she didn’t appear at all.
This is the best present that I have received.