—1 wonder if Sue will be here by five．
—Don't worry ! She just went to collect her kids．She be back by then．
| A．should | B．can | C．would | D．might |
_____ has already been pointed out, grammar is not a set of dead rules.
| A．As | B．It | C．That | D．This |
.---There is a lot of smoke coming out of the teaching building.
---Really? It _____be a fire, most probably.
| A．can | B．ought to | C．have to | D．must |
–Did you find your new dictionary?
---Yes. I found it ____I had left it.
| A．in where | B．in the place which |
| C．where | D．which |
–Will you ______me ____out this problem myself?
---OK.
| A．make; work | B．permit; working | C．let; work | D．allow; work |
–When did the concert_____?
---Oh, two days ago.
| A．happened | B．take place | C．hold | D．start |