模拟卷1-35Whenaboxisloaded,itrequiresmuchmoreforcetopullitalongthan.A.emptyB.isemptyC.itisemptyD.whenitisempty请详细写出解题的过程和思路.

Question

模拟卷1-35
When a box is loaded,it requires much more
force to pull it along than _____________.
A.empty B.is empty
C.it is empty D.when it is empty
请详细写出解题的过程和思路.

Answer 1

这个选择D.
When a box is loaded,it requires much more force to pull it along than (when it is empty.
这里是一个比较than后面接的是一个从句 when it is empty
盒子装满时,要要比空盒子时用更大的力才能拉动.