Land animals are believed ______ from sea animals.
#103259
A
to have developed
B
to have been developed
C
having developed
D
having been developed
推荐题目
--- I’m sure Andrew will win the first prize in the final. --- I think so. He ___________ for it for months.
#104958
A
is preparing
B
was preparing
C
had been preparing
D
has been preparing
—Hangzhou, which we visited last week is quite beautiful．—We should thank Tom．He ____ us to．
#102700
A
had persuaded
B
persuaded
C
was persuading
D
persuades
—I’d like to buy the kind of cloth which ____ easily．—Will this one ____?
#102701
A
washes; work
B
is washed; work
C
washes; do
D
is washed; do
— Is there anything wrong, Bob? You look sad.— Oh, nothing much. In fact, I ________ of my friends back home.
#102844
A
have just thought
B
was just thinking
C
would just think
D
will just be thinking
Although medical science __________ control over several diseases,what worries us is that some of them are returning.
#99526
A
achieved
B
has achieved
C
will achieve
D
had achieved