David has to admit the fact ________ he has fallen behind the others in his class.
#68130
A
whether
B
that
C
why
D
when
推荐题目
 If it _______ sunny tomorrow, I ______ the Great Wall. 
#41147
A
will be, climb
B
is, climbing
C
will, am climbing
D
is, am going to climb
We hadn't met for 20 years, but I recognized her_____ I saw her.
#73296
A
the moment
B
for the moment
C
the moment when
D
at the moment when
Although he practiced______ those English words a lot, he ______ the pronunciation. 
#41099
A
read, finished
B
to read, memorized
C
reading, forgot
D
reading, improved