He was thoughtful and grave—but the orders he gave were enough to bewilder a crew.

He _____ the test, but he wasn ’t careful enough.A. must have passedB. should pa

[主观题]E．ven a person joins the crew, he has to go through the pre-boarding security screening procedures.此题为判断题(对，错)。

He ____ the maths examination if he had worked hard enough, but he didn’t.A. wou

[单选题]When he the door, he found his keys were nowhere.A． would open B. opened C. had opened D. was to open

[单选题]H．e gave up ______on medical advice.A． drinkingB． to drinkC． drinkD． to being drink

[单选题]He gave us an [ambiguous]answer.A.unclearB.wrongC.apparentD.unbelievable

He gave up his study in college in _______.A. bundleB. despair

He gave a lecture on the use of solar （能源）.He gave a lecture on the u

He gave the police the()of the stolen goods.A. shapeB. shadowC. descriptionD. ex

It depends on _______ he has enough money.A. ifB. weatherC. if or notD. whether