_____ it rain tomorrow, we would have to _______ the picnic.
-Excuse me, madam. My flight is BA 6520. Is this my gate?- . Please show your ticket and ID card.
I do hope that you can give me some good _______ on how to improve my spoken English.
I love animals and that’s the reason ______ I hate the people who kill wild animals for money.
In the library, I found a useful book ______ how to use English grammar.
Many websites have been _______ to help people study foreign languages.