单选题 All his evenings were ___ with study.

单选题 To tidy up his novel, John is looking for an environment free ___ outside distraction.

单选题 She simply ___ that the check was good and did not ask him any question about it.

单选题 Why can't you and Bill go to the movies tonight? We are ___ a history test tomorrow.

单选题 The farther away we are from our motherland, the ___ much we miss her.

单选题 Water encourages the ___ of iron and oxygen to form rust.

单选题 ___ can theory be separated from practice.

单选题 It is no easy thing to ___ some work to do.