In my point of view, the question is not _____ the world is going to have a new economic crisis, but when.

    A. that            B. how                     C. what                  D. whether

 ______ the housing price, several measures have been adopted in the last two years.

A. Lowering        B. Having lowered    C. To lower              D. To have lowered 

 Shooting, as ____ means of survival originally, developed into _____ sport only in the late 19th century.

A. a; a                B. the; the                  C. a; the                         D. the; a

 Although the Eiffel Tower _____ to last for 20 years, it is still standing today.

A. has designed     B. had designed     C. is designed       D. was designed

 ---You seem busy these days.

---Yes. I’m looking for a house. It’s really not easy to find _____ with a garden.

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

 ---The weatherman on the news said it might rain later on this afternoon.

---Well, I ____ take my umbrella along with me today.

    A. can                  B. may              C. could              D. must    

--- I’m going to have lunch. Do you mind talking about your plan ____ lunch?

---All right. I’ll wait here in the office.

A. after　　　　　 B. before　　　 C. over　　　　　　　 D. until

 Jonny, I can’t believe how much you have changed! You _____ at least one foot!

   A. grow            B. grew          C. have grown        D. are growing

 Friends are angels who lift us to our feet _____ our wings have trouble remembering how to fly.

A. unless           B. because        C. though            D. when

 Some seemingly harmless blogs might become harmful when _____ on the Internet by millions of people.

A. to read         B. reading         C. read             D. being read