—There is a lot of smoke coming out of the teaching-building there.
—Really?It _________ be a fire,most probably.
| A．can | B．ought to | C．have to | D．must |
If you offer him some help this time, since he once helped you, that would be ____.
| A．equal | B．more equal | C．fairer | D．more fair |
If ________ guests we have, we would need ___ food.
| A．more; less | B．fewer; more | C．few; less | D．fewer; less |
The problem with people in Africa ____that the more is given and the more ______.
| A．is; is needed | B．are; is needed | C．is; they need it | D．are; they need it |
The reason ___ he is absent is ___he has a bad cold.
| A．why; that | B．why; because | C．that; because | D．for; that |
_______ people died ______ starvation that year will never happen.
| A．That; of | B．That; from | C．What; from | D．How; of |