Tom ______ in the library every night over the last three months.
| A．works | B．worked | C．has been working | D．had been working |
This kind of storiesinstructive while stories of that kindharmful to children.
| A．is; seems | B．are; seem | C．is; seem | D．are; seems |
We have reached a stage _________we have almost no rights at all.
| A．where | B．why | C．which | D．that |
The little boy_____be very naughty, but he is very lovely.
| A．must | B．should | C．can | D．shall |
he referred to in his article was unknown to the general reader.
| A．That | B．What | C．Whether | D．Where |
It is not immediately clearthe financial crisis will soon be over.
| A．that | B．what | C．when | D．whether |