It’s a difficult skill to master, but ______, it will benefit you for the rest of your life.
#90000
A
once obtained
B
when to obtain
C
after obtaining
D
while obtaining
推荐题目
One learns a language by making mistakes and _______ them.
#97851
A
correct
B
correcting
C
corrects
D
to correct
_______________ while writing, he locked himself in his study.
#94156
A
Not to interrupt
B
Not being interrupted
C
Not to be interrupted
D
Being not interrupted
_____, your composition is full of mistakes.
#95713
A
Writing carelessly
B
Written carelessly
C
Having written carelessly
D
Being written carelessly
The time and effort he has devoted during the past few years ______ trees in that remote area is now considered to be of great value.
#95651
A
plant
B
planting
C
to plant
D
to planting