Don’t be joking. It’s time to ______ your business.
| A．take up | B．set out | C．go on | D．get down to |
Don’t take ______ for granted that he will agree with you on the subject.
| A．this | B．that | C．it | D．Which |
In this country it is required that anyone who wants to settle here ______ to pass this kind of test.
| A．has | B．must have | C．have | D．will have |
You will find the game is not so difficult to play ______ you understand its rules.
| A．until | B．since | C．before | D．once |
The building, ______ in the shape of an egg, is now just for tourists.
| A．designing | B．designed | C．to be designed | D．having designed |
Remember to take a breath of ______ fresh air and have some exercise each day. It will make ______ difference.
| A．/；a | B．the；a | C．/；the | D．a；the |