One-fifth of the area ________ covered with trees. About seventy percent of the trees ________ been planted recently.
A.is; has B.are; have C.is; have D.are; has
There are only ________ natural resources as there were thirty years ago.
A.as half much B.as half many C.half as much D.half as many
Mum is coming. What present________ for your birthday?
A.you expect she has got
B.you expect has she got
C.do you expect she has got
D.do you expect has she got
The players ________ from the whole country are expected to bring us honor in this summer game.
A.selecting B.to select
C.selected D.having selected
—Is this the first time you ________ Chonqing?
—No. The first time I ________ here, the city wasn’t so fascinating.
A.visited; came B.visited; have come
C.have visited; have come D.have visited; came
Scientists say it may be two years ________ this new medicine can be tested on human patients.
A.before B.after C.since D.when
