Wood has been used to make paper since the 19th __________(世纪).

[试题].Theoldpapermillhasbeen______tomakewayforanewshoppingcentre.A．)helddownB)keptdownC)cutdownD)turndown

[单选题]If it has been over 12 hours since you missed a dose, you should .A． change the amount of your next doseB．, eat more when taking your next doseC． have a dose as soon as you rememberD． take the next dose at your regular time

[问答题]She has been a lawyer since she finished college.

[问答题]The belief that books make one clever has been proved.

[单选题]26． My cousin has been happy since he_________ to spend more time with his friends．A． will allowB． will be allowedC． allowedD． was allowed

[单选题]Liberia has been in difficulty since its independence mainly because_______

[单选题]The work breakdown structure (WBS) has been widely used inmanagement for so

[单选题]B．y saying "the world has been spared a t.rue water war" (Line 1, Para.4), the author means（ ）[A] the water supply in the world is more than needed[B] the world has saved enough water to avoid the war[C] the world has never suffered a war triggered

[单选题]The History of theFridge 1 The fridge is considered a necessity.It has been

[单选题]The History of theFridge 1 The fridge is considered a necessity.It has been