Jack went to college last year and left his parents ,____________ to return home until he achieves his goal.
| A．determining not | B．not determined | C．not determining | D．determined not |
There are many valuable services which the public are willing to pay ___, but which __ not bring a return in money to the community.
| A．to; do | B．不填；does | C．for; does | D．for; do |
. In no country other than Britain, it has been said, ____ experience for seasons in the course of a single day.
| A．you can | B．people can | C．can one | D．can it |
_ Mr. Morgan appears extremely cheerful in public, he is in fact leading a very unhappy life.
| A．As | B．Since | C．While | D．When |
Was __ at the air battle on June 8,1994, ____ was led by Captain Johnson ___ Peter lost his life?
| A．it; when; that | B．that; that; who | C．it; which; that | D．it; which; when |
—I can’t find Mr. Smith. Where did you meet him this morning?
—It was in the hall ____ our products were showed..
| A．that | B．which | C．the one | D．where |