If you ____________ down the volume of your stereo, the neighbours would not have complained.
A. turned
B. ’d turned
C. have turned
D. would not have turn
Chọn đáp án B
If we __________ the window yesterday, it __________ so cold in here.
If they __________ a new tent, they__________ wet during the night.
If the men __________ the batteries, they 999 enough power for their laptops.