【題目】_______ (keep) themselves awake, the twins sat on the floor and told each other stories.

【題目】Tony found_________really difficult for him to have a better understanding of this movie.

【題目】—Could you tell me _________the party? —Next Friday.

【題目】National Day is coming! We'll have_________holiday.

【題目】Unbelievable! I used to think it was a task that could not possibly _______ (success).

【題目】I’ve five pounds because I ate too much meat.

【題目】My brother _____ to read by my mother when he was very young.

【題目】— Is Jim coming by train?

【題目】Nobody can avoid _____ mistakes.

【題目】There is a ruler on the ground. Let’s _____ and find out who the owner is.