At the meeting they made a decision which 　　   me powerless to act.

A. stopped　　   B. left　　 C. brought　　 D. caused

Could people become infected　　   HIV by swimming in a pool or sitting in a bath?

A. with　　　　   B. of　　　　　　 C. into　　　　　　 D .to

—You seem to show interest in cooking.

—What?　　   , I’m getting tired of it.

A. On the contrary　　　　　　　　　　  B. To the contrary

C. On the other hand　　　　　　　　    D. To the other hand

Marco Polo and his family established an overland trade route to China, but it was ______ the first

sea route was discovered that travel would become easy.

   A. until　　  B. not before　　　　   C. after　　  D. not until

After sailing ______ the Atlantic Ocean for 10 weeks, land was sighted by a sailor called Rodrigo

Bernajo.

   A. through　　 B. on　　  C. across    D. past

But Prince Henry said he knew they could, and he _______ ships to attempt it.

   A. sent out　　　　 B. sent off　　   C. sent on　　 D. sent for

“Why do you drink so much coffee?”

“Well, ______ it doesn’t keep me awake nights, I see no harm in it.”

   A. although　　 B. as long as　　 C. as far as　　 D. for

______ air service has been made available through modern technology.

A. Effectively　　 B. Modern　　 C. Inexpensive　　  D. Efficient

Survival in the desert has always depended ______ the availability of water.

   A. in   B. at   C. on   D.  up

A lot of students get concerned ______ their grades only at the end of the term.

   A. in　　 B. about    C. for   D. with