He was sitting on the floor ________ by books.
| A．surrounded | B．surrounding |
| C．surroundings | D．surround |
Courage is a kind of quality --- and that’s __________it takes to face the challenges in life.
| A．that | B．which | C．why | D．what |
Don’t be afraid of asking for help ___________ it is needed.
| A．unless | B．since | C．when | D．although |
___________ time, she will make a first-class tennis player like LiNa.
| A．Having given | B．To give | C．Giving | D．Given |
Jim passed the final exam, ___________ surprised his classmates and parents.
| A．that | B．which | C．this | D．it |
-You were not in when I came over to your house.
-Oh, I ____________ for a friend from England at the airport.
| A．was waiting | B．had waited | C．am waiting | D．have waited |