____ for the timely investment from the general public, our company would not be so thriving (兴旺的) as it is. 
A. Had it not been      B. Were it not     C. Be it not     D. Should it not be 

Don’t worry about Mary.　 _______ , she is no longer a child any more.

A. At all　　 B. After all　　 C. In all　　 D. Above all

I decide to pay a visit to you, but I don’t know whether it is quite _________ to you.

　 A. convenient　　 B. fair　　　 C. easy　　　 D. comfortable

That’s the m_________ of the Olympics---------“Swifter, Higher and Stronger”

The idea puzzled me so much that I stopped for few seconds to try to____.

A. make it out　　　 B. make it off　　　 C. make it up　　　 D. make it over

你可以信任他,因为他很可靠。(reliable)?

Someone is ringing the doorbell. Go and see _____.

　 A. who is he B. who he is 　C. who is it　　 D. who it is

The company has a free long-distance telephone number_____ customers may call with any questions they have about its products.

　　 A. so that　 B. although　 C. as　　 D. even if

— Mary is often absent from school.

—Yes. That’s _____ he falls ill so often.

A. why　 B. because C. for　 D. the reason