シス単p.67,69-72

(You ought to see a doctor.)

You ought to see a doctor.

(in spite of difficulties)

in spite of difficulties

(I don't know whether it is true or not.)

I don't know whether it is true or not.

(explain why he was late)

explain why he was late

(accept the truth as it is)

accept the truth as it is

(produce enough food)

produce enough food

(Does God really exist?)

Does God really exist?

(express my feelings)

express my feelings

(add some milk to the soup)

add some milk to the soup

(avoid making mistakes)

avoid making mistakes

(marry Mary)

marry Mary

(protect children from danger)

protect children from danger

(Alcohol affects the brain.)

Alcohol affects the brain.

(determine your future)

determine your future

(solve the problem)

solve the problem

(Vegetables contain a lot of water.)

Vegetables contain a lot of water.

(discuss the problem with him)

discuss the problem with him

(ignore the doctor's advice)

ignore the doctor's advice

(guess how old she is)

guess how old she is

(exchange yen for dollars)

exchange yen for dollars