If you like I can do some shopping for you. —That’s a very kind.

Bad habits, ____formed, are difficult, and sometimes impossible to shake off

Mr Wang told us that he would devote all thetime he could spend _______ his oral English before going abroad

What do you think of the book?　-Oh, excellent It is worth _____ second time

Sam had to be reminded many times _____ he could calm down and focus on his work.[ ]