.If _____,the experiment will be successful.

.If _____,the experiment will be successful.

#4718

carefully doing

it done carefully

carefully done

doing carefully

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Fill in the blanks with articles where       ．

#4567

necessary

necessarily

is necessary

it necessary

.On April Fool’s Day people often play tricks _____ others.

#4736

with

There are many idioms used in English _____ quite a few of them come from the Bible.

#4586

that

which

and

but

It is always difficult being in a foreign country, __________if you don’t speak the language.

#4917

extremely

naturally

basically

especially

 I prefer _______ to __________ in my spare time.

#4699

singing… dancing

sing… dance

to sing... dance

to sing…dancing

共563题