一Whom would you like to be your assistant，Jack or David？ 一If I had to choose，David would be__________choice.

9． —Do you want tea or coffee?—I really don-t mind_________ ．

Either he or I ______to the airport.

—Which foreign language are you better at, English or French?—I am sorry I know _______of English and _______of French.

Look at the trouble I amin!If only I__________your advice．

—Do you learn Russian or French?—I learn _____.

—Do you learn Russian or French?—I learn ______.

If only I ______ hard in the past few months! But I didn't work hard enough and failed the maths examination.

If only I _____ hard in the past few months! But I didn’t work hard enough and failed the math examination.

If only I ______ hard in the past few months! But I didn’t work hard enough and failed the math examination.

It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.

Look at the terrible situation I am in! If only I ______ your advice.