(2013·安徽省芜湖三校一模)A recent study has found that the number of smokers ________ sharply over the past five years.
#99557
A
is increasing
B
are increasing
C
has been increasing
D
have been increasing
推荐题目
I don’t really work here,I until the new assistant arrives.
#102261
A
just help out
B
have just helped out
C
am just helping out
D
will just help out
Salley________Beijing for Shanghai and________there ever since. You can go and pay her a visit on your way to Hangzhou.
#104697
A
has left; worked
B
left; worked
C
has left; had worked
D
left; has worked
— Is Paul playing both soccer and tennis for the school? — He ______. But now he has given up playing tennis.
#101970
A
is
B
has
C
was
D
had
It is said in the book that Thomas Edison (1847—1931) ________ the world-leading inventor for sixty years.
#104751
A
would be
B
has been
C
had been
D
was
I’ve finally finished my paper and it ＿＿＿＿＿ me an entire month.
#104645
A
takes
B
took
C
was taken
D
had taken