There were some chairs left over everyone had sat down.
| A．when | B．that | C．until | D．where |
.The teacher demanded that our examination paper _____handed in at once .
A be B must be C would be D had to be
The reason I plan to go is _____if I don’t .
A because she will be disappointedB that she will be disappointed
C because she will have a disappointment D on account of she will be disappointed
----Mr. Li told me once he had a fall and broke his leg .
----_______was that.
A Since when B For how long C How long ago D How soon
This is an illness that can result in total blindness ____left untreated.
A after B if C since D unless
Mum wrote to me every week ,_____she was too busy with her teaching work .
A if B even C unless D when