This is _____ I really mean: each failure leads us closer to deeper knowledge.

A．how                B．when               C．what              D．where

---Hey, what’s happening?

---Why_____?

A．does the light go out                      B．has the light gone out     

C．did the light go out                        D．is the light going out

Penn hopes Mr. White will be successful in reducing class sizes. _____, she would worry.

A．If no               B．If it is not                C．If not                     D．If it is no

I need the money. And ____, when I agree to do something, I do it.

A．except             B．besides                  C．though               D． but

---Steve, you didn’t come to the Mary’s birthday party last night?

---I _____, but I suddenly remembered I had a report to write.

A．didn’t              B．had to              C．would              D．was going to

Bryan is very fond of gardening. He_____ be watering his flowers in the backyard now.

A．will                 B．might        C．must                D．would

_____ I thought Bob was joking but then I realized he meant it.

A．At first            B．Just now              C．After all             D．At once

---I think you should take more exercise if you want to keep fit.  

---_____.

A．That’s all right                      B．Thank you for your advice

C．Never mind                          D．You’re most welcome

_____his lack of experience, his work is remarkably good.

A．To give                          B．Giving

C．Given                            D．To be given

You can’t demand respect for others if you don’t give _____to them.

A．it              B．this                C．one                 D．some