I took mathematics and physics because I think that ________ very important for me to make further research in this field.
The bus hit the huge stone by the road heavily _________ he could stop it. A. after B. before C since D. until
____________ to do the repair, and what you need is only a hammer and some nails.
They’re not playing baseball today ___________ the rain.
I have no idea ________ is better, so I took _______ of them.
The country has ________ too many wars.