28. —Where have you been all day?
—I _______ some former classmates and I couldn’t get back until it was dark.
| A．have met | B．met | C．would meet | D．had met |
—My daughter mastered English in less than two years.
—Did she? She________have a gift for languages.
| A．can | B．would | C．should | D．must |
On the surface of the water________, which spoiled the beautiful scenery of the park.
| A．some dead leaves did float | B．did float some dead leaves |
| C．floated some dead leaves | D．did some dead leaves float |
—What about going swimming on such a hot day?
—________.
| A．It must be funny | B．That's right |
| C．Have a nice time | D．Sounds great |
---Do you mind if I smoke?
---______.
A． I’d rather you not to |
B．I’d rather not |
| C．I’d rather you didn’t | D．I’d prefer not to |
Mark Twain worked for several years as a pilot on a steamboat, taking passengers up and
down the Mississippi, the great river ___flows from the north of the US near the Canadianborder.
| A．as | B．what | C．which | D．who |