One of the first foreign expeditions _______ Mount Qomolangma arrived in Tibet in 1921.
We were swimming in the lake _____ suddenly the storm started.
That is the only way we can imagine _______ the overuse of water in students’ bathrooms.
Some 200 people were reported ______ in the earthquake which happened in Sichuan last month.
The children in some remote areas are looking forward ______ a chance to receive further education.
A small car is big for family of three_______ you need more space for luggage.