We will make fewer mistakes _______ we are careful enough.
句意：只要我们足够细心，我们就会少犯错误。
考查连词辨析。as long as只要；so that以便；as far as直到；even if尽管。空前讲“我们将会犯更少错误”，空后讲“我们足够细心”，细心是少犯错误的条件，结合选项可知要用as long as引导条件状语从句。故选A。
We will make fewer mistakes _______ we are careful enough.
— Which do you prefer, tea or coffee?
— Either. ________ tea ________ coffee are my favorite.
Work hard, _________ you will get good grades.
—Excuse me. Where is the nearest hotel?
—Just go down this road ________ you see a library. It’s across from it.
President Xi encourages all Chinese people to plant trees______ our country can be greener and more beautiful.
It was great in the end ______ we had a terrible time at the beginning.
—Peter, would you like to go shopping with me?
—I'd love to, ________ I have to finish my homework first.
In Chinese families, people won't start dinner ________ the elders take their seats.
Swimming is, of course, interesting. But ______ we plan to go swimming, being safe must come first.
The clever boy called 120 _______ his mother fell down in the kitchen.
