---Why are you busy these days?-- I am writing a book.

---Why are you busy these days?--         I am writing a book.

#56484

since

for

because

推荐题目

They were walking ________ a forest after they swam _______ the river .

#57029

through, cross

across ,through

through, across

across, across

Remember to wash your hands __________ you have meals.

#56692

before

until

though

unless

Hurry up, ________ you will be late for school.

#58088

and

but

Learning to write is learning to think. You don’t know things clearly _______ you can write them down.

#56362

unless

since

whether

If you have trouble pronouncing the word, you can repeat it over and over again _______ you are comfortable with it.

#55250

unless

until

while

共1556题