______ abroad for more than two years, he returned to his hometown.
#89414
A
Studied
B
Studying
C
Having studied
D
To study
推荐题目
_________ in Current Biology, the finding suggests that female birds seek mates with superior singing skills.
#95584
A
To publish
B
Published
C
Having published
D
To be published
My doctor advised me to reduce the amount of sugar ______ to the milk I drink.
#89935
A
add
B
to add
C
adding
D
added
There are some health problems that, when ____in time, can become bigger ones later on.
#91075
A
not treated
B
not being treated
C
not to be treated
D
not having been treated
What is the way George thought of ______ enough money to buy the house?
#89915
A
to get
B
getting
C
having got
D
being got
The matter_______ people’s health surely requires________ carefully.
#94343
A
related to; dealing with
B
relating to ；dealt with
C
related to; being dealt with
D
relating to ；having dealt with