The Bunsen Burner is so named because it is thought ___________ by Robert Bunsen.
#94981
A
to be invented
B
having been invented
C
invented
D
to have been invented
推荐题目
— Are you still thinking about yesterday’s game?— Oh, that’s ____________. 
#95106
A
what makes me feel excited
B
whatever I feel excited about
C
how I feel about it
D
when I feel excited
.Young________, he already knows what career he wants to follow.
#93934
A
though is he
B
though he is
C
he is though
D
is he though
It won’t be______he______to Taiwan for further study on computer technology.
#92956
A
long before;will go
B
before long;goes
C
long before;goes
D
before long;will go