1.He ____ French while staying in Paris last year.
A.picks up B.picked up C.picks out D.picked out
2.A decision ____ is made too early often has to be changed by further developments.
A.that B.what C.when D.who
3.They succeeded _____ solving the problems.
A.in B.to C.with D.on
4.There is no rule _____ has exceptions.
A.that B.but C.what D.which
5.You should hire a more _____ manager than the one you currently have.
A.sufficient B.effective C.respective D.efficient
6.Don’t get off the bus _____ it stops.
A.until B.that C.when D.while
7.The idea came _____ him when he was repairing the engine.
A.up B.against C.to D.up to
8.They carried an umbrella ______ they might stay dry in the rain.
A.in order to B.in order that C.unless D.whether
9.The travelers ______ 300 miles a day by car when they were in Africa.
A.passed B.took C.covered D.go
10.It is because he is too young _____ he doesn’t understand that.
A.so B.that C.so that D.therefore