It’syourjob________thepopstars.
A、introduce
B、introducing
C、introduces
D、tointroduce
____thecenterofourplanetarysystemwasconsideredasheresybythechurchintheMiddleAges.
A、Itisthesunandnottheearth
B、Thatthesunandnottheearth
C、Beingthesunandnottheearth
D、Thesunandnottheearth
Thefirststepinthestudyofanylanguageisobservingand____preciselywhathappenswhennativespeakersspeakit.
A、settingoff
B、settingabout
C、settingup
D、settingdown
It’simportant_____aforeignlanguage
A、ofustolearn
B、Forustolearn
C、ofuslearning
D、foruslearning
Heconcludedhisspeechwitharemarkthatfailure____themotherofsuccess.
A、musthavelasted
B、willhavelasted
C、wouldlast
D、haslasted