—Ready to quit guessing, Sandy?—No, no, I hold on! I think I _____ to the answer.
—Oh no! We're too late.The train________. — That's OK.We'll catch the next train to London.
—Could I use your car tomorrow morning? —Sure.I________a report at home.
Generally,students' inner motivation with high expectations from others________essential to their development.
—I don't understand why you didn't go to the lecture yesterday afternoon. —I'm so sorry.But I________my homework.
If nothing________,the oceans will turn into fish deserts.