Another thing that he _________ very difficult was English grammar. 
#63646
A
learned
B
knows
C
finds
D
found
推荐题目
She wants_____ an orange.
#54503
A
to eat
B
eating
C
eat
D
eats
The president _____ all people _____ our environment. 
#54151
A
urge, protect
B
urged, to protect
C
urges, protect
D
urged, protect