单选题 This kind of plant ______ a lot of water at all times.

单选题 New medicines are ______ remarkable results in the treatment of cancer.

单选题 You should read more books to enlarge (扩大) your ______.

单选题 The doctor was ______ an operation to save the patient’s life.

单选题 Charlie thinks money will ______ all his problems.

单选题 Students should be encouraged to be ______ thinkers.

单选题 Soldiers are expected to ______ orders.

单选题 The good weather could be an important ______ in tomorrow’s game.