Before the first nonstop flight made in 1949, it_____ necessary for all planes to land for refueling.
#101489
A
would be
B
has been
C
had been
D
would have been
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With their market share shrinking, analysts ______ that their profits have fallen by around 15%.
#100537
A
accomplish
B
reckon
C
promote
D
urge
Mr. Lee, who ________ as a carpenter for over 10 years, is now a very famous statesman in this country.
#102331
A
has worked
B
had worked
C
worked
D
works
----Guess what, we’ve got our visas for a short term visit to the UK this summer.---How nice! You ______ a different culture then.
#100542
A
will be experiencing
B
have experienced
C
have been experiencing
D
will have experienced
—What’s that noise, John?—Oh, don’t you know that the school library ?
#101331
A
is rebuilt
B
is being rebuilt
C
was rebuilt
D
has been rebuilt
It long before we the result of the experiment．
#102004
A
will not be；will know
B
is；will know
C
will not be；know
D
is; know