单选题 It is not the tools a scientist uses but how he use the tools that _______.

单选题 Neither Jane nor her brothers _______ a consent form for tomorrow's field trip.

单选题 Not only the whole nation, but the whole Europe, indeed the whole human society _______ to alter its attitude to racial problems.

单选题 Many a boy _______ to swim before he can read.

单选题 Today there _______ a number of telephone calls from the applications for the position.

单选题 Not only you and I but Peter, the top student in our grade _______ not able to solve the problem.

单选题 Writing stories and poems _______ what I enjoy most.

单选题 The factory director and chief engineer _______ an experienced person.