Prices of daily goods________through a computer can be lower than store prices.
#99181
A
are bought
B
bought
C
been bought
D
buying
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We are confident that the environment ________ by our further efforts to reduce pollution.
#100189
A
improves
B
will be improved
C
has improved
D
was improved
—Have you seen Jack recently?—No. He for another company now.
#102939
A
is working
B
had worked
C
worked
D
was working
By the end of this year, we _____ 2000 English words.
#104139
A
will learn
B
would learn
C
have learned
D
will have learned
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
I ________ up to $5 000 by the time the new term begins in September.
#99453
A
have saved
B
will have saved
C
will be saving
D
had saved