–Do you have some trouble ____ the problem? Do you need some help?--No, thank you. I can make it myself.
#50320
A
solve
B
solving
C
to solve
D
solved
推荐题目
The purpose of new inventions is to make life easier, it more difficult.
#48658
A
not make
B
not making
C
not to make
D
do not make
After he finished ______ the exciting story, he talked about it on and on with his friends.
#49539
A
reads
B
read
C
reading
D
to read