Stop making so much noise the neighbor will start complaining.
A.or else | B.but still | C.and then | D.so that |
I can still remember that it is since the 1990’s, _____ we began to use cell phones,_______ the number of mobile users has greatly increased.
A.while; when | B.when; what | C.before; that | D.when; that |
—I can never forget the day ___ we spent together in the summer camp.
—Well, especially the day _______it suddenly began to rain in the middle of the night.
A.when; when | B.which; when | C.what; that | D.on which; when |
Every one of us must know this: _________ we live can we save the earth.
A.by changing the way only | B.by only changing the way |
C.only by changing the way | D.by changing only the way |
During the period of recent terrorist activities, people _____ not to touch an unattended bag.
A.had always been warned | B.were always being warned |
C.are always warning | D.always warned |
—What a great cook your sister is!
—Yeah! We ______ never have enough of her cookies.
A.may | B.must | C.should | D.can |