—Really, I don’t know ________ to join the army or to find a job after my graduation.—Why don’t you ________ your parents’advice? They will surely help you.
Sea water ______ many minerals, salt ______.
----How do you like the book? ----It’s quite different from ______ I read last month.
I will carry out the plan _____ there is much difficulty ahead.
When I was passing the Town Hall, I heard the clock ______ twelve.
Your brother ______you is very kind to me.