the problem of land erosion（侵蚀）getting more serious, the local government is searching for a way to deal with it.
| A．As | B．With | C．When | D．If |
My point is that you must do ____________ is best for you.
| A．whatever | B．however | C．no matter what | D．no matter how |
-----I stayed up late last night preparing the speech.
-----__________ you look so tired today.
| A．No doubt | B．No problem | C．No time | D．No wonder |
The little girl was afraid of having her bad tooth pulled out. The dentist tried hard to put her _____________.
| A．at last | B．at hand | C．at ease | D．at least |
Listening to loud music at rock concerts __________ caused hearing loss in some teenagers.
| A．is | B．are | C．has | D．have |
____________________ to the party, Joan was greatly hurt.
| A．Having not been invited. | B．Having not invited |
| C．Not having been invited | D．Not having invited |