Although the first part is easy the rest ____.
| A．is supposed difficult | B．are difficult |
| C．has proved difficult | D．could have been difficult |
______ catch the early bus, John got up early today.
| A．In order that | B．In order to | C．So as to | D．So that |
— It is understandable for him to make such mistakes.
— You are right, ______ that he is only a new hand.
| A．considering | B．being considered | C．to be considered | D．considered |
The opening ceremony of the 11th National Games, ______ in Jinan, Shandong Province from Oct.15-28 was highly praised.
| A．to be held | B．being held | C．held | D．having been held |
After retirement, learning a musical instrument may be harder than ______ when you were a kid.
| A．it may | B．it was | C．it does | D．it did |
We cannot figure out ______ quite a number of students were infected with the flu.
| A．that | B．when | C．why | D．where |