如果你要迟到了,你总可以打个出租车。
If you're running late, you ___can ___always call a taxi.
要是下雨的话,我们总可以在家看电影。
If it rains, we ___could ___always watch a movie at home.
如果你不理解这个单词,你总可以在网上查一下。
If you don't understand the word, you ___can ___always look it up online.