The letters for the boss___________ on his desk but he didn’t read them until 3 days later.
| A．were put | B．was put | C．put | D．has put |
We’ll have a picnic in the park this Sunday ________ it rains or it’s very cold.
| A．since | B．if | C．unless | D．until |
To learn English well, we should find opportunities to hear English ______ as much as we can.
| A．speak | B．spoken | C．speaking | D．to speak |
They were very________when they heard the________news that he would come back in two days.
| A．surprising; surprised | B．surprising; surprising |
| C．surprised; surprising | D．surprised; surprised |
They say that_______a lot of water is good for you.
| A．drink | B．having drunk | C．drinking | D．drank |
It was _______ a dangerous drug ______ he nearly died.
| A．so; that | B．such; that | C．so; because | D．such; because |