be known for，nothing but，be used to，for instance，in my opinion，all the time，think about，participate in，be irrelevant to，the same as

（1）The essay which you wrote

is irrelevant to

is irrelevant to

the topic.
（2）I have to remind myself repeatedly that I'm not a child anymore.Otherwise，I feel

the same as

the same as

before.
（3）Jack will have to

participate in

participate in

a sporting activity that day，so he can't accompany you to go there.
（4）Lola is so determined that she never

thinks about

thinks about

quitting.
（5）Guilin is a tourist attraction which

is known for

is known for

its beautiful scenery.
（6）Sandy could do

nothing but

nothing but

admit to his teacher that he was wrong.
（7）Many great men have risen from poverty-Lincoln and Edison，

for instance

for instance

.
（8）This method can

be used to

be used to

solve the problem.
（9）

In my opinion

In my opinion

，learning English is a step-by-step process.
（10）Opportunities are present

all the time

all the time

，but often they disappear unnoticed.