Pleasewriteareport________theabovesubjectsaretobecovered.
A、whichB
in which the above subjects are to be covered 是 report 的定语从句。 which 指代先行词report ， in 用于与 report 搭配。
Pleasewriteareport________theabovesubjectsaretobecovered.
The first task of a brochure is to _______.
Heshookhandswiththevisitors________astoconveyhisapology.
______aretheprimarydestinationsfortheChineseatpresent.
Chinaisamountainouscountry.Hills,mountains,andplateauscover_______ofthetotalarea.
