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【单选题】
All the rings are slightly rounded on their external top and bottom edges to keep the oil film on the cylinder liner during for new piston rings.A.
the running-in period
B.
the running process
C.
the gas exchange process
D.
the boiler firing
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【单选题】You'd better take the map with you __ you won't get lost,
A.
as long as
B.
as soon as
C.
now that
D.
so that
【简答题】If you ____ do as I tell you , you ____ go to the party . A．can ; shan''t B．wil l; won''t C．won''t ; shall D．won''t ; shan''t
【单选题】Sarah, hurry up or you won’t have time to ______ before the party.
A.
get changed
B.
get change
C.
get changing
D.
get to change
【单选题】— Be sure to get there on time, _____ you? — Of course, we _____.
A.
will; will
B.
won’t; shall
C.
don’t; do
D.
can; must
【单选题】You won’t feel happy at school _________ you get on well with your classmates.
A.
though
B.
when
C.
unless
D.
because
【单选题】'To get cash out in the 21st century, you won't need a bank card or a PIN and you even won't have to move a finger. You will simply have to look the cash machine straight in the eye,' declares Nationa...
A.
Stella.
B.
ATM.
C.
PIN.
D.
NCR.
【单选题】You won't get a loan ________ you can offer some security.
A.
lest
B.
in case
C.
unless
D.
other than
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