The house rent has been growing fast in cities. You have to pay nearly _______ than you did two years ago for a flat of the same size in some cities.
| A．twice as much | B．as much as twice |
| C．twice as many | D．twice more |
—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 |
—_________ he start at once or wait for a while?
—Let him start at once.
| A．Will | B．Would | C．Does | D．Shall |
—Is the man our sales-manager?
—No,it _________ not be him.He never plays cards.
| A．must | B．can | C．will | D．may |
.How I wish every family _________ a large house with a beautiful garden.
| A．has | B．will have | C．had | D．had had |
One of the main themes of the summit was “sustainable development”,or the question _________ we can continue developing the world without damaging the environment.
| A．what | B．how | C．why | D．that |