It’s unfair! You sit there, listening to me, _____ I stand here, teaching you.
A. as B. when C. while D. since
Only _____ our courage beats our fear ________________.
A. when; can we succeed B. if; we can succeed
C. because; will we succeed D. while; we’ll be able to succeed
Three fourths of the surface of the earth ______ covered with water.
A. are B. is C. will be D. was
We finally bought a house, _________ about seven feet by ten.
A. measured B. measuring C. is measured D. measures
The US is ___ number 7, while the UK is _____ the 13th position.
A. on; in B. in; at C. at; in D. of; on
Why ______ we eat outside ______ we have so much delicious food at home?
A. must; when B. can; while C. will; as D. should; though
