So far, all of the infected people are thought _______ the flu after direct contact with sick birds.
#92384
A
to have caught
B
having caught
C
to catch
D
being caught
推荐题目
 ________, I think, and the problem could be settled.
#93734
A
A bit more effort
B
So long as you keep up your spirits
C
If you doubt your efforts
D
Making great efforts
 The machine has been used many years_____ it doesn’t work well occasionally.
#94762
A
That’s because
B
It’s no wonder that
C
There’s no doubt if
D
It’s unlikely that
___ a very rough sea, with waves ten metres high.
#94591
A
It were
B
This will be
C
It was
D
There’ll be