Mr Smith was a strict headmaster, but ______ all the teachers and students in our school showed respect for.
| A.that | B.the one | C.one | D.who | 
The air company going from bad to worse, the workers____________ hardly enough to make a living.
| A.are paid | B.are paying | C.have paid | D.paid | 
The question came up at the meeting____________ we had enough money for our research.
| A.that | B.what | C.which | D.whether | 
--Was Tom there when you arrived?
 --Yes, but he___________ home soon afterwards.
| A.had gone | B.has gone | C.is | D.went | 
--What is the model plane like?
 --Well, the wings of the plane are___________ of its body.
| A.more than the length twice | 
| B.twice more than the length | 
| C.more than twice the length | 
| D.more twice than the length | 
The wrong you've done to him is terrible,for__________ you should make an apology to him, I think.
| A.this | B.which | C.what | D.that |