We________intheneighborhood.
A、happenedbeing
B、happenedbe
C、happenedtobe
D、arehappenedtobe
Hecameintotheclassroom_________.
A、veryupset
B、beingupset
C、toupset
D、tobeupset
Atthismomentthebellrang,________theendofclass.
A、announced
B、havingannounced
C、announcing
D、toannounce
Woodisoften_________paper.
A、usedtomaking
B、usedtomake
C、usedtobemade
D、usedmaking
Onewaytounderstandthousandsofnewwordsistogain__________goodknowledgeofbasicwordformation.
A、/
B、the
C、a
D、one