---- you do me a favor?
-----Sure. With pleasure.
| A．Must | B．Need | C．Should | D．Could |
Mary has been looking forward in the past 10 years to______the Great Wall.
| A．payingavisitto | B．callon | C．beingonavisit | D．callat |
It won’t be too long before we_____a way to smooth away these difficulties.
| A．work out | B．willworkout |
| C．had worked out | D．are working out |
Muchashelikedthebook,____hedidn’thaveenoughmoneytobuyit．
| A．but | B．and | C．therefore | D．/ |
Atlasttheygottheletterthey____________．
| A．haveexpected | B．wereexpecting | C．hadexpected | D．hadbeenexpecting |
__________thetopofthepagoda(塔),thesceneryofthewholecitycanbeseenclearlyunderyourfeet.
| A．Viewing | B．Viewed | C．Seeing | D．Tobeseen |