______nature reserves _______us learn more about protecting animals.
#48781
A
Studying ; help
B
Studies ; helps
C
To study; helping
D
Studying; helps
推荐题目
He raised his voice，but still couldn’t make himself _________．
#48717
A
hearing
B
heard
C
to hear
D
hear
Lucy likes English very much . She does her best _____it well.
#49337
A
to learn
B
learn
C
learning
D
is learning
There are so many kinds of pens in the shop ,I can’t decide ______.
#50047
A
when to buy
B
where to buy
C
what to buy
D
which to buy
People are often made ________ by the ________ man.
#51306
A
laugh; interested
B
to laugh; interested
C
laugh; interesting
D
to laugh; interesting