Having walked in the desert for several days，we finally reached what was called oasis，________.
A．exhausting B．being exhausted
C．exhausted D．exhaust
The other day，my brother drove his car down the street at________I thought was a dangerous speed.
A．as B．which C．what D．that
．Nobody but doctors or nurses and those ________ by Dr. Hu
________ to enter the patient's room.
A．invited；is allowed B．are invited；are allowed
C．being invited；allowed D．invited；are allowed
________ terrible weather it was when tsunami and earthquakes happened in Indonesia.
A．How B．How a C．What D．What a
Science and technology is changing fast nowadays. I bought this MP3 player at the beginning of this year but now it's out of ________.
A．date B．order C．use D．sight
You must keep ________ in mind________you are a student and you should obey the school rules.
A．it；that B．such; as
C．something; which D．everything; because
