Have you ever served the auxiliary engine to combustion heavy oil? What should be borne in mind when transferring oil; from heavy oil to light oil?
第1题:
A: Have you seen my camera? I can't find it.
B: Just now I have seen it. You_____ have put it in the bag.
A. must
B. would
C. should
第2题:
A. can
B. could
C. might
D. should
第3题:
A:I have got a pain in my chest. B:You ( )see the doctor.
A. have
B. need
C. should
第4题:
I just wonder if ( )ever( )that you could have your own enterprise and run it yourself when you were still a student.
A、it.occurred
B、you.occurred to it
C、it.occurred to you
D、you.occurred
第5题:
What's ( )job? Are ( ) British?
A. your, your
B. you, your
C. your, you
第6题:
You look() What()you()?
Atire;did;do
Btiring;have;done
Ctired;do;do
Dtired;have;been doing