Small sailboats can easily turn over in the water ______ they are not managed carefully.

A.though   B.before   C.until   D.if

Small sailboats can easily turn over in the water ______ they are not managed carefully.

   A. though  B. before C. until   D. if

  Small sailboats can easily turn over in the water ______ they are not managed carefully.

   A. though  B. before C. until   D. if

 Small sailboats can easily turn over in the water ______ they are not managed carefully.

   A. though     B. before        C. until         D. if

Small sailboats can easily turn over in the water ______ they are not managed carefully.

A. though             B. before   C. until    D. if

Small sailboats can easily turn over in the water ______ they are not managed carefully.

A. though　　　　 B. before　　　　　　　 C. until　 　　　　　　 D. if

Small sailboats can easily turn over in the water　　　　　 they are not managed carefully.?

A.though　　　　　　　　 B.before　　　　　　　　 C.until　　　　　　 D.if

Beneath each of the following sentences there are four choices marked A, B, Cand D. Choose the one answer that best completes the sentence.Small sailboats can easily turn over in the water ______ they are not managed carefully.

1. A.
   though
2. B.
   before
3. C.
   until
4. D.
   if