_______ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected.

What are you planning this weekend— I don’t know. Maybe I will visit my grandparents.

we had at the party yesterday!—Yes, and the food was so nice.

下列各句中，没有语病的一句是

Did you remember to give Mary the money you owed her?— Yes, I gave it to her ________ I saw her