—What’s the best way to reach you if I have a question during the day?—I'm glad you ________. It’s best if you send me an email.
.It is very difficult to his mind because he is always changing his mind.
I don’t think the two parties can agreement in the near future.
. Knowledge of English is a must in international trade.
----Who did you spend last weekend with? ---- .
Yesterday I was invited to the dinner at invited to the dinner at .