We thought _______ strange that Tom did notcome yesterday.

(2017·北京)Many airlines now allow passengers to print their boarding passes online ________ their valuable time.

Though _____to go to bed many times, the little boy just turned a deaf ear and fixed his eyes on the cartoons [ ]

People running for president often _____ reducing taxes. [ ]

Nowadays more and more people are advised to arrange for insurance_____that they or their family members need medical treatment