－You've made great progress in your English study, haven't you?

－Yes, but much ________．

remains to do

is remained to do

remains to be done

is remained to be done

Unfortunately, when I dropped in, Doctor Li ________ for Beijing to join in the fight against SARS, so we had not enough time for a talk．

just left

has just left

is just leaving

was just leaving

We ________ last night, but we went to the concert instead．

must have studied

might study

should have studied

would study

－Jack, how did it ________ that you made so many mistakes in your homework?

－I myself haven't figured it out yet．

occur to

come about

bring about

break out

－He looks hot and dry．

－So ________ you if you had a temperature of 40℃．

may

would

must

should

－Tom, did Mr．Alex join in your discussion?

－No, he ________, but he happened to have fallen ill．

would like to

was to have

will

was going to join

－The weather isn't good enough for an outing, is it?

－Not in the least．We can't have ________ at this time of the year．

a nicer day

a worse day

a worst day

so fine a day

________ you have found, you should give it back ________ it belongs to．

However, to anyone

Whatever, no matter who

No matter what, whoever

Whatever, to whoever

Pakistan does not ________ the possibility of a war starting with India, but promises to do everything it can to reduce tensions．

give out

rule out

turn out

send out

The World Trade Organization finally opened its door to China on November 10, ________ a 15-year wait．

only to end

ending

to end

and ends