Mr. Smith ______ a grammar book meant for senior high school students and will almost finish it.
#100784
A
has been writing
B
has written
C
was writing
D
has been written
推荐题目
Although some athletes _______ their sports ambitions , there are still many more struggling for success .
#101746
A
achieved
B
will achieve
C
have achieved
D
had achieved
—Where is Tom? — Well, he ______ you ______ here．Otherwise he would come down right now．
#103207
A
didn’t know; were
B
hasn’t known; are
C
doesn’t know; are
D
hadn’t known; were
(2013·郑州二模)A college is going to ________ a student's ability based on grades and then make the decision to admit or refuse an applicant.
#99558
A
experiment
B
parallel
C
assess
D
observe
Large quantities of information，as well as some timely help ________since the organization was built.
#100480
A
has offered
B
had been offered
C
have been offered
D
is offered
With the help of high technology, more and more substances _________ in the past years.
#101033
A
discovered
B
have discovered
C
had been discovered
D
have been discovered