(   )10..I will give him the gift as soon as he ________ .

A. will arrive   B. arrive   C. arrives   D. arrived

(   )11. The bag is too small. Give me ______, please.

A. a big   B. big one   C. a big one         D. big

(    )12. I don’t mind ______ if you can’t find anyone else.

A. help          B. helping    C. to help           D. to helping