The astronauts have to lie ________ the floor of the spaceship to fight against the great pressure during the flight.
| A．in | B．beyond | C．against | D．at |
Work hard at your lessons, ______ you’ll fail the exams again.
| A．and | B．but | C．otherwise | D．besides |
We’ll never forget the days ______ we spent in the country.
| A．when | B．where | C．what | D．不填 |
Every time I _______ to the shopping center, I will buy my son something nice.
| A．went | B．will go | C．go | D．have gone |
According to the weather forecast, it will be _____weather that we had better stay at home.
| A．such a bad | B．such bad | C．so bad a | D．so bad |
He had to take the medicine 3 times a day to be _______ the pain in the leg.
| A．free from | B．away from | C．far from | D．apart from |