A new kind of drug ___ ___ to cure H7N9 bird flu by the scientists and they are hopeful that they will succeed in a couple of weeks.
#100007
A
has been developed
B
is being developed
C
is developing
D
has developed
推荐题目
--- Is Tom still smoking?--- No. By next Saturday he _____ for a whole month without smoking a single cigarette.
#100521
A
will go
B
will have gone
C
goes
D
has been going
Investment by Chinese companies in the US _____ rapidly in recent years.
#99065
A
was growing
B
has been growing
C
had grown
D
will be growing
The time is not far away when mobile phones _____ widespread in China’s vast countryside.
#104886
A
will become
B
become
C
shall become
D
have become
In the last few years thousands of films all over the word.
#102635
A
have produced
B
have been produced
C
are producing
D
are being produced
------You speak very good French!--------Thanks .I _____ French in Sichuan University for four years.
#99781
A
studied
B
study
C
was studying
D
had studied