—Why don’t you wear your jogging shorts, mum?
—Well, my legs are too skinny, if you ______ know.
| A．must | B．can | C．may | D．need |
Where on earth have you been? We you back much earlier.
| A．were expecting | B．are expecting | C．had expected | D．expect |
He works in a factory now, but he on a farm for 20 years.
| A．worked | B．has worked | C．had worked | D．had been working |
Glad to see you back. How long in Russia?
| A．did you stay | B．have you stayed | C．were you staying | D．have you been staying |
---Have you decided already?
---Yes, I at once.
| A．have decided | B．decided | C．will decide | D．had decided |
--I’ve bought a box of chocolates for our daughter.
---Oh, how good a dad! But she doesn’t like sweet things, that?
| A．Don’t you know | B．Haven’t you known |
| C．Didn’t you know | D．Hadn’t you known |