The American girl father is an engineer is my pen friend．
A．who B．whose C．that D．which
Is some German friends visited last week ?
A．this school where B．this the school where
C．this the school D．this school
Winter is the time of the year the days are short and nights are long．
A．on which B．that C．when D．where
--- What ______ when I phoned you?
--- I ______ my work, and I was about to go out．
A．have you done; finished B．were you doing; have finished
C．did you do; had just finished D．were you doing; had just finished
It was the first time ________ I ________ face to face with a thunder storm.
A. when / had come B. that / have come C. when / came D. that / had come
We were having a meeting _________ suddenly someone knocked at the door.
A. because B. when C. as D. while
