We don’t write to each other regularly,but we do keep intouch by telephoning _____.
Safety in school has been of great concern (关注) because of recent reports about accidents _____ students got injured or killed at school.
----Has the teacher who was hurt in the earthquake been taken good care of? ----Ever since she was sent to the hospital, she has never been _______.
Living in the central Australian desert has its problems, _____getting water is not the least.
Mr. Tang enjoys writing in his spare time. His works have ______ him many good friends.
I_______ while reading the English textbook. Luckily , my roommate woke me up in time!