It is the prevention of disease______its successful treatment that has led to the rapid increase of the world’s population.
| A．rather than | B．less than | C．in addition to | D．in the direction of |
—What were you up to when she dropped in?
—I _________ for a while and __________ some reading.
| A．was playing; was going to do | B．played; did |
| C．had played; was going to do | D．had played; did |
—Have you heard from Janet recently?
—No, but I ______ her over Christmas.
| A．saw | B．will be seeing |
| C．have seen | D．have been seeing |
—I haven’t seen you for ages. Where have you been?
— I _______ on leave in Europe.
| A．have been | B．am |
| C．was | D．had been |
—Can I help you, Madam?
— No, thanks. I_______.
| A．have just looked around | B．just look around |
| C．just looked around | D．am just looking around |
—Tom came back home the day before yesterday.
— Really? Where __________ at all?
| A．had he been | B．has he been |
| C．had he gone | D．has he gone |