So long as you do what you can, no one will blame you __________ you might fail in the future.

4 It used to ______ that humans andanimals were different and had little in common

The incomes of skilled workers went up _________, unskilled workers saw their earnings fall[ ]

The red light above the elevator______ that he was atthe tenth floor then.

ou got a free evening next week ________, let’s have dinner.