He made another wonderful discovery , ____ of great importance to science.

----It looks heavy. Can I give you a hand?
----_______.

I failed in the examination last term and only then ____the importance of study.

—Why don’t you take some exercise? Sitting before the computer is bad for your health.
---________, but I have to finish my work on time.

_____，there were also no lights in the houses along the street．

—Everything goes well，_____?
—Not really．

—Could you please do me a favor?
—_____
—I mean，could you help me?

I'll try it again．Never in my life _____ such a particular difficulty．

—What do you think of their marriage?
—______, if I were Kate, I would not marry him.

—How did you find your visit to the Olympic Park, Tom?
—___________.