The study surveyed 500 families and found that the main ________ problem people suffered was tiredness, followed by loneliness and anxiety.
| A．domestic | B．public |
| C．psychological | D．biological |
David said that it was because of his strong interest in literature＿＿he chose the course.
| A．that | B．what | C．why | D．how |
No matter how frequently＿＿，the works of Beethoven still attract people all over the world.
| A．performed | B．performing |
| C．to be performed | D．being performed |
I had wanted to help you last night but I couldn't spare any time, for I＿＿＿a composition which I have to hand in this morning.
| A．wrote | B．was writing | C．had written | D．have written |
Only ticket-holders were＿＿＿to the stadium for the concert given by Jay Chou, so many of his fans were turned away.
| A．allowed | B．permitted | C．agreed | D．admitted |
The Frenchman pointed to the spoon and asked me＿＿＿to call that in Chinese.
| A．whether | B．where | C．which | D．what |