Discovery in a South African cave suggests that modern human behavior ____ much earlierthan ____.
#88366
A
begin, previously thought
B
began, previously thought
C
should begin, previous thinking
D
began, previous thinking
推荐题目
When ______questions in class，one should answer them as clearly as possible．
#95976
A
asking
B
to ask
C
to be asked
D
asked
_______from the top, the 2008 Olympic stadium in Beijing looks just like a bird's nest made of tree branches.
#98453
A
To see
B
See
C
Seeing
D
Seen
Though ________ in a big city, Bill always prefers to sing the songs of country life.
#93408
A
bringing up
B
grown
C
raised
D
Keeping
---The last one ___ carries all the luggage. ---Agreed!
#92550
A
arrived
B
arrives
C
to arrive
D
arriving