When Wenchuan county was _________ from the outside world, the government sent food there by helicopter.

_____ it was very cold, _____ my friend still went swimming in Jialing River this morning.

I just have _______ cup of milk and a small cake for _______ breakfast.

I have never _______ the view that schooldays are the happiest days of your life with a burden of homework.

Not only the students but also the teacher ___enjoying the film at 9 pm yesterday.