20. _______, English is one of the most important subjects.
A.It is known to all that | B.As is known to all that |
C.As we know | D.As it is known to all |
It wasn’t long _______ the two daughters of President Obama got used to the life in the White House
A that B before C until D and
that Marie was able to set up new branches elsewhere.
A.So successful her business was |
B.So successful was her business |
C.So her business was successful |
D.So was her successful business |
My parents live in a small village. They always keep candles in the house_____there is a power out.
A.if | B.unless | C.in case | D.so that |
Leave your key with a neighbor _______ you lock yourself out one day.
A.ever since | B.even if | C.soon after | D.in case |
Small sailboats can easily turn over in the water ______ they are not managed carefully.
A.though | B.before | C.until | D.if |