—How about your travel?
—You can hardly imagine what difficulty we have had ______ the vast desert.
| A．exploring | B．explored | C．to explore | D．explore |
Phoenix is a very nice city with plants and flowers ___the year round.
| A．grown | B．planted | C．planting | D．growing |
.– How much did you pay for that?
--- I paid _____ that you paid.
| A．half the money | B．half | C．the halves | D．a half |
.More than one girl _____, as we expect.
| A．has come | B．had come | C．came | D．have come |
As we all know, two thirds of the earth’s surface is water, ___ a lot of fish.
| A．provided | B．providing | C．which provides | D．it provides |
Jack is the ______- child in the family; he wants to have a brother.
| A．one | B．single | C．only | D．separate |