Theaddressbook________theemailaddressesofyourfriendsorgroupsofcolleagues.
A、makesiteasytorecall
B、makesiteasyrecall
C、makeseasytorecall
D、makesrecalliteasy
Wemust______thattheexperimentiscontrolledasrigidlyaspossible.
A、assure
B、secure
C、ensure
D、issue
________they'vegottoknoweachotheralittlebetter,theygetalongjustfine.
A、Dueto
B、Eversince
C、Nowthat
D、Regardlessof
Hethoroughlyunderstoodthesociety__________.
A、Hethoroughlyunderstoodthesociety__________
B、whichhadhegrownup
C、inwhichhehadgrownup
D、hehadgrownupinit
It'smore________tobuyaseasonticketifyoutraveleveryday.
A、cheap
B、economic
C、economical
D、saving