The boy ought to have gone to school ___, but he slept ___noon.
| A．in the morning, at | B．that morning, at |
| C．in that morning, until | D．that morning, until |
On stepping into his room he was astonished to find the floor covered with _____looked like tiny insects.
| A．that | B．something | C．what | D．anything |
People traveling long distances frequently have to decide ______they would prefer to go by land, sea or air.
| A．which | B．how | C．why | D．whether |
After five years of preparation, Shanghai presented the world____many said was the greatest Special Olympics.
| A．when | B．what | C．where | D．Which |
We haven’t settled the problem of_______it is necessary for him to study abroad.
| A．that | B．whether | C．what | D．if |
In peace, too, the Red Cross is expected to send help to__________there is human suffering.
| A．whoever | B．however | C．whatever | D．wherever |