Travellers, when ____________ the checks, have to sign the checks in the presence of the bank or service clerks

29．__________ when you are on the bus or bike．

—When can I call on you, afternoon or evening?
—________. I’ll be at home all the time.

（ ）Some students prefer yellow rulers or erasers when they study for exams because yellow is the color of __________.

Virginius would feel more or less guilty when he______.

Virginius would feel more or less guilty when he _____.

Duty is an act or a course of action that people __________you to take by social customs, law or religion.

Duty is an act or a course of action that people ______you to take by social customs, law or religion.

Believe it or not, when first (introduce) ____ to Europe, tomato was thought to be poisonous.

Project ______is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

其实，遏制高考移民和推进异地高考，是可以____的，而其办法就是深入推进高考制度____，打破分省按计划集中录取制度——如果全国所有考生可在任何地方报名高考，以高考成绩去申请大学，高考不再跟属地捆绑，也就不存在异地高考一说。填入画横线部分最恰当的一项是：

It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.